What I mean is that when Musk-owned companies have successes people are very often quick to accuse him of "just hiring smart people" or "just buying a successful company." It's only when those companies have failures that he gets credit for being hands-on in their design decisions.
Don't get me wrong, I think Elon Musk is a pretty terrible person both in terms of his personality and his politics. But pretty terrible people can nevertheless be smart and make good engineering decisions. Just look at von Braun as a prime example.
In my experience, it's likely that some of those downvotes come from reflexive "AI bad! How dare you say AI good!" Reactions, not anything specific to mental health. For a community called "technology" there's a pretty strong anti-AI bubble going on here.