Maybe because you're not an actibe member of one of those fields whose subreddits now gets these vibecoded tools every other day. Because for those, I can tell you that the overwhelming majority isn't cool. Even when they are trying to solve a problem and aren't (yet) seeking a profit. They have very little time, energy and thought put into them. They're made by people who are passers-by, who aren't personally invested and often haven't experienced the problem first-hand; it's just a problem they heard about, or assumed would exist. And that leads to things that are a waste of time. Often they have blatantly obvious problems that show they didn't even QA it for an hour.
The amount of reddit posts I land on from the last few years which are noticeable longer with no added value for the increased length than they would have been in the past is getting very annoying.
I'm saying this while in a field that's even more anti-AI/tools than yours, FWIW. By virtue of anything that mentions AI - and much of the tools that don't even mention it but are suspected - getting auto-removed by automod on the subreddit. There's only one subreddit in our field, everyone's on it, and it blanket bans anything with AI, despite the best tools out there incoporating it.
It's not even something like art, design, coding and so on where people are scared of job loss or even hobby loss, it's nothing like that at all for the community. I do suspect the mods' friends might feel threatened, as they _do_ make a living off of the community, but in our case I don't even think that's their primary reason to blanket ban it.