The stated premine in the announcement on bitshares forum clearly stated they reserved 80% of the original coins, not all coins, it's far less now, less than 5-10%, unlike most ICOs. And they are not keeping them, but giving them away as stated and using them to push project forward.
https://bitsharestalk.org/index.php?topic=22125.0 To make steem worth something, they actually have to improve it, and they did - e.g. forking away 95% of inflation and power down time, website updates. and you can even make your own interface to the steem blockchain, don't have any need for steemit.com
Steem is also the 2nd most used blockchain after btc, more steem gets more use than all eth apps and currency and all other crypto combined except btc because it's actually useful. It's also fastest crypto in the world by thousand times and higher.
Steem went up almost 30 times before it went down, but people new to crypto probably have no idea that there's more than polo exchange, because they only buy tops after polo adds coins.
Who are these children calling this a scam. It's pathetic, must be those inbred yobit traders or onecoin/ethereum scum who know zero about crypto.