If the dev do the job ,why some guys can't accept his work worth 7 to 10 btc? Don't be so mean. I think it is the time to invest and dig more.
If the author has been doing development for the coin,and work hard for it's furture,it worth more than the value of 7-10 Bitcoin, but the problem is now authors always develop a coin, sold out all the primine coins within one week , then went away ,bulid another coin, this is pure scam, too much these authors now.
Maybe you are right! I have gone through many scam coins. But there is something different.
To the DEV, since you cover premine truth from beginning, you can sell it all and get a litter BTC,then rebuild another coin,we just lose small amount BTC and some time. but if you keep on developing new features,lucky enough you can acquire 10 or even 100 times than dump in one week. It's all on you.