I don't consider PPCoin or LTC a scam. I think you have to separate SCAM coins from simply Poorly designed coins. Any coin can have a poor implementation, diff, block reward etc. What makes a SCAM coin (Bitbar, Mincoin etc.) is that they are designed with the sole purpose of making the developers and their 'friends' rich.
I see, any store of value coin or coin which can make people "rich" is a scam.
Bitbar I can agree on because you can't even mine it now that the difficulty is so high, but nothing stops you from mining Mincoin. What you're saying is you don't agree with the early reward structure but that doesn't make it a scam because in the case of Mincoin anyone was free to mine them in the first 3 days and you chose not to. The developer and his friends mining it in advance is premining. Instamining is when it's mined up in one day. 3 days is early bird mining and I suppose you could say it's a case of instamining and I can understand that sentiment but it doesn't make it a scam unless you can't mine and get significant coins still.
You can get 2000 coins a month mining Mincoin. I'm mining Mincoin right now. Some people had a lot of Mincoin early on but most of those people sold them, have a look at the network and you'll see that while it started out unbalanced, a lot has changed as most of the early miners have cashed out and are cashing out as we speak.
The difficulty in my opinion is the issue that matters. A coin can be intended not to be instamined and use SHA256 and one ASIC can ruin the difficulty. Mincoin at least used scrypt and has something like 1 minute block rewards, the difficulty adjusts something like twice a day, what more do you want?
It's a good coin to mine over the long term, and most complaining are just mad that didn't start mining the first 3 days. Some people didn't get a chance to mine BTC in the first 3 years and now there are ASICS, the same argument is being used against BTC making the early adopters rich or making Satoshi rich thus Bitcoin is a ponzi scheme?
