I think that does actually happen quite often. Many devs are, (and I don't mean this derogatory, but with a bit of a humorous wink, as I do consider myself as having some artistic urges myself) "artsy types."
And sadly they do tend to be relatively thin-skinned and are often hurt even by valid criticism of their creative baby. (which is, again, something I understand, but does of course go completely against the whole idea that you are putting yourself "out there" with your project by publishing it)
So, if people are actually going after them out of mean spiritedness or because it makes their life seem less empty to troll others online, it's not that rare that it becomes too much for some devs.
In a way, you actually have to be thankful I'd say, if a dev just leaves the site, instead of abandoning their project completely which isn't a rare occurrence either.
Going back so far as the original Teacher's Pet iirc. (though some of the criticism aimed at that game definitely was warranted, after the changes)
Might be a reason why so many feel the need to be white-knighting against any form of criticism directed towards a dev/game they like.
I can be quite direct with my criticism at times, when I believe a game is really not on the level that it should be shown publicly in any way, but I would never start to shit on someone's work on a constant base and just to make them miserable.
That just requires a level of negative intent and drive that I can't really understand.
And before I forget it, because I think I haven't explicitly expressed it here already, unlike on the patreon, I'm really glad you feel better and while I'm thrilled that work on the game is resuming again, your personal well-being should always come first.
Just happy to see you on your metaphorical feet and active here again.