Each blocksize upgrade will need to be adressed in code and most likely first voted upon by the masternode owners
(who also voted on the 2mb blocksize increase). I'm not sure if such a code change equals a hard fork, i think it will
just change a certain code in a certain file.

The possible changing of the protocol towards implementing extremely thin (x-thin) block propagation will most likely need a hard fork.  

Talking about scaling fix, looks like Bitcoin has its own problems with its scaling solution : https://coingape.com/lightning-networks-vulnerability-exposes-users-loss-funds/

yes, possibly. It means changing protocol from current block propagation protocol to another (x-thin ?) block propagation protocol.
I assume that will need a spork hard fork mandatory update at some point, if thats the direction that Dash is taking at that (future) time.

Hard forks are handled through sporks with Dash.

Links : https://docs.dash.org/en/stable/developers/index.html#sporks

If a lot of people would really want this, then Dash has the option to poll its network and see if there is a majority for it.
This is how the 2MB blocksize increase got approved in the first place : https://www.dashcentral.org/p/2mb-blocksize

Someone can put up a proposal for 5 Dash and masternode owners will then vote about the changes you have in mind for Dash.
However with the necessity missing for such changes (as Dash blocks are nowhere near full), such proposal has little chance of passing.

You now say like this: why do you need a large apartment, you do not have children yet, but if they appear, then maybe we will change it to another. The Fund exists to buy expensive equipment and maintain a network . Or have you run out of coins in your Fund?

I want a nice apartment at once, so the Windows were on different sides for ventilation, to wait and to believe the promises not very interesting

funniest thing I have read all week xD
that's a helluva vote of no confidence

Yeah, this has been a brutal, protracted, unjustified winter.
Rubbish like litecoin - simply unjustified market cap

Yes, it is brutal and protracted winter for altcoins,but it is not unexpected. Almost from beginning,it is quite obvious that most of the coins have highly centralized wealth distribution. Few major players in quite coordination pull the strings for almost every coin.The lower market cap the easier to manipulate coin value.  When they decide to push coin down there is no positive news or good coin developpment which can prevent it. And the contrary, when they decide to pump coin,every bad news will be put aside or deliberately diminshed through paying people to write positive articles and bots to spread hype on forums and media.

They are playing on emotions of traders(greed when pumping and desperation when dumping),making such bad market conditions that most of people lose its nerves and act recklessly.For every crypto trader it is essential to control his/her emotions if he/she wants to succeed.

One tip - the colder and longer winter , the hotter summer will be after.