wrong
1. bitcoin core, other wallets and miners do understand P2PK because they do show p2pk transactions.. only electrum does not. meaning the fault lays within electrum.
(dont play your agenda game of pretending bitcoin is broke but your favoured service is good, especially when your favoured service is the thing that is broke!)

lets sidestep into blackhatcoiners offtopic/meader and misunderstanding of the p2ip which is not even something the topic creator mentioned. but because blackhat did and said many mistakes, needs to be rectified for other readers sake
2. pay to IP was not about some special way to confirm transactions outside of usual mining rules
pay-to-ip was a way to just send a unconfirmed unbroadcast signed TX to another user directly instead of the whole network seeing it (pre-confirm via peer-to-peer relaying to everyone. )
it was a privacy thing. of not annoucing a TX until its in a block by not letting everyone have a copy before the block its confirmed in..
this would mean the recipient got a unbroadcast/unconfirmed signed tx, which he can then broadcast to everyon tolet then put it in thieir block..when he wants to get it confirmed
or solo mining it where people only get to see it when the recipient or sender included it their own block they solved, as they were the only ones with it pre-confirm.
back in the old days there was 'no pools' it was solo mining.
pay-to-ip was not about paying in an immutable/confirmed way to someone in a different method other than the block solving method that existed at the time(solo) was more about giving it to only to a select few people(privacy) so that not everyone seen the signed tx before it appeared ni a blcok, and if those people included it in their block attempts and their blocks confirmed, then that transaction is confirmed and finally seen by the network for the first time,  

(you should know this very well with your offchain favoured system (of the privacy aspect of the bitcoin network not seeing it until close session broadcast) it has nothing to do with deeming the other person as confirmed immutably paid by pretending the unconfirmed payment is a final settlement(which foolishly LN tries to infer.. which is where you are mistaken, but should have learned by now))

3. when most blocks became solved by pools and not solo. the usefulness of pay to ip became useless, because the chances of someone then solo mining to include the TX (to get paid) became less. thus people had to broadcast to the network publicly for the chance for it to get into a block

anyways... back to talking about the P2pk:
4. pools even now can still accept and collate into blocks p2pk transactions. mining (hashing blocks) didnt change due to the creation of newer tx formats


now that has been clarified
the reason electrum does not show p2pk.. is not due to pools. its not due to mining.. its due to electrum. and only electrum not being coded well

as admitted by blackhatcoiner in his post he made ages before. other software does show the 50btc coinbase rewards. yep core, blockexplorer, blockhain.info, and so many more software do show it.. so electrum not showing it is a flaw of electrum

says the guy that brought up pay2ip as a reason to blame electrums inability to read pay2pk(facepalm)

hint if you just said "That's because Electrum doesn't recognize P2PK (Pay-to-public-key) outputs" and only that.
instead of then point fingers in all different places to explain it.. there would not have been need to correct you

---

anyways. to end the sideshow debate of blackhatcoiners pointy fingers by completely correct to debunk blackhatcoiners pointy fingers of p2ip blame blame.. so that everyone can finally know its as simple as electrum just cant be bothered and is at fault...

lets just totally once and for all correct blackhatcoiners misunderstanding of what p2ip is so they he can just STOP. and not meander with his misperceptions. and just accept what actually happens and not discuss it again.
(im doing this because blackhatcoiner and his buddies like to jump into topics and not say whats actually at fault but say something is at fault due to [insert other bitcoin network thing/node feature that is broke where bitcoin as a whole was/is not fit for purpose])

..
p2ip was not about paying a IP instead of a public key..
it was about using an ip address to connect to a persons node to request a public key, then create a tx with said public key as destination of funds, sign tx. and send tx to the recipient direct before broadcasting it to everyone else


imagine 2 nodes
A and B

A wants to pay B
first step A connects to b.. B sends A publickey for how to pay B
(thats where you stop with your narrative at this point)

A then creates a transaction (a payment) and sends the signed tx to B
the privacy aspect is that A did not have to transmit the transaction(payment) to everyone on the network unconfirmed.

instead A or B could then include it in their solo mining block attempts. and the payment is confirmed and only seen by the wide network when the solved block is propagated to the network so that only then can the whole network only then see that there was a payment betwen A nd B

as for IP privacy
well all nodes worked via connecting to each other via IP

people only wanted to trade with other people they trusted and knew so would only use paytoIP with people they knew already.

no one used it with strangers and it was not meant to be used to gather info by forcing people to PaytoIP to learn what someones IP was to then DDoS them.

people were smarter then that to be demanded to reveal their IP to strangers who could then associate a forum profile with an IP
and such it was never used because in many many cases people didnt know/trust each other well.

it also got used alot less when pool mining came about where chances of solo  miners solving blocks that included their prefered tx list were not happening as much as pool mining was, so people just ended up just relaying transactions with everyone to greaten the chance of being included in a block

anyway..
yes we can, challenge accepted

https://youtu.be/W3rb_26QswM?t=260

oh and as for your privacy thing
this is not about telling everyone your IP. not everyone knows or gets to see your IP. you are only telling your prefered person the IP.
again its not about having a destination address of funds as an ip address

its about choosing to connect directly to a service you know of who happily wants you to connect to them..

well that was the initial idea.
hense why satoshi set up the cod as like a merchant tools mechanism so a merchant can be connected to and then send the customer a public key(bitcoin address) the merchant wants to be paid with

and yea i made things easy. instead of a wall of text code for you to read i found a video summarising the code

as for the lack of seeing the genesis block..
and more simpler reason.. some lazy coded wallets start at block 1.. not 0, because no one thought to check that there is actually a block 0, and instead just had a counter start at 1 for "the first block"

Very information. Thanks a lots to everyone.

How the Bitcoin Explorer really work ?  Is the Bitcoin explorer pulling the data from backend of the Bitcoin database ? 
I want to create a proper Bitcoin Block Explorer, how to start it ?  Where is the code of Block Explorer ? Can some one help me out to create a good Block Explorer ?  Once you help me and the Block Explorer running from new Node and server, I will be able to pay out some reward later but for now you can give a support Charity wise.

May be I will setup a new project that will generate some money and run the Block Explorer.

Thanks.

Considering the fact that the output of block #0 can not be spent by design, there is no point for "wallets" to show that unspedable UTXO as part of the wallet content.
It is different for block explorers though since they are showing history and they should add an exception for that output and include it in the history but not show it in the balance.