Except that's not what Abelius is doing at all. Blackmail? Where? He's just doing the usual: Contribute if you want it sooner. If you don't, you get it later. Or at least when someone decides to leak the latest here.
He's stated if the monthly donation pool doesn't reach a certain threshold the game can't continue.
I'm not saying there's anything wrong with that either. That's the reality of his situation.
He needs a certain income to continue developing the game.
From a certain "donator" perspective, they now feel beholden to commit to the game not because they want to donate or tip the person making it but because they know if the developer doesn't make that sum of money - the game they want is going to die.
Abelius isn't shy about this topic either - he talks about donations falling or support falling almost every month.. he made an entire fork of his own game called "Cold Pizza" because he was worried people weren't donating over the lack of adult content.
Talking about money or lack of money in almost every subscribestar update - I would not call a "tip jar" ecosystem.
Please read the entire conversation to contextualize my reply before hopping in off a single word I said. Otherwise your post just comes off as bad faith.