Do you use Bittrex?! You might want to read this.... I believe people have been accidentally sending massive amounts of steem to @bittrix instead!
Seems someone or multiple people have sent their powerdowns accidentally to "bittrix" as opposed to "bittrex" and it seems that whoever owns that "bittrix" account, has received a shit ton of steem from that error. It could be an accident... but it seems more likely that someone tried to make an account that was one letter off from "bittrex" to try and catch funds through user typos... BE CAREFUL!
As you can see, the account here, has the mirrored amount:
https://wallet.hive.blog/@bittrix/transfers
If you look at the steem wallet though....
https://steemitwallet.com/@bittrix/transfers
I did a bit of digging and it seems that it may be @darthknight who is sending the largest amounts. That is, if the comment in the transaction sent to him by @ausbitbank is correct, which it very well may be!