If negativity killed his enthusiasm for the game's development, he should avoid places where it's hitting him, if possible.I suspect the negativity got to him. The best chances for a turnaround would be some people joining his Discord to wish him well and hope he comes back to continue the game because we enjoy it. That won't happen of course, but he's a person like anyone, and pressure to perform can get to anyone.
Unfortunately for him, the Discord he created for his users isn't really something he can or should avoid.
It's possible that some tragedy hit him, and that's why he broke off communication completely. It has happened with some devs. And, it's certainly possible that, whatever the reason for the communications break, embarrassment is preventing him from admitting where things stand.
At this point, the best way to clear the negativity would be to:
- Post some message as to the current state of affairs.
- Stop charges on Patreon if he is not currently working on the game, or at least fulfilling any special content promised to Patreons.
- If possible, if he does still plan on working on the game, give an estimate on when he thinks he'll get back to it. If he's not taking people's money, and communicates, even an indefinite hold will probably be acceptable to fans. Given his recent history with releases, his mantra should be underpromise, overdrive.