In the blockchain world it is you who will bear all the responsibility for all of your actions.
If you use your private keys to do something undesirable, like send cryptocurrency to wrong account, nobody else can do anything about it, even if they wanted.
Accusing others for your own screw-ups might work in traditional markets, but not in the blockchain world. Please don't even try it. You are just hurting your own reputation.
Agreed, but I'm not the only one who made this mistake, as it's not immediately obvious to every newcomer that Steem and Bitshares are two different blockchains, and that Bittrex has two separate accounts for each.