So you guys think there's a conspiracy?
Let me explain:
I'm sure you've all heard "You can't hack Blockland" but seriously you can't take down RTB
You can't hack RTB
It's just a little error. As you can see the site isn't down so nothing is serious.
They didn't hack the accountsThe accounts obviously had (as Badspot said) a poor password recovery answer that could easily be guessed.
Badspot isn't moving to Steam-onlyYou will still be able to download from the site. Steam is just an alternative that will get Blockland more popular
So there you have it. Blockland can not be hacked. Full stop.