Some of the very worst of the worst liberal takes, apologia for fascist shit, and of course cryptobro grifts and even Tesla worship keep coming from there. It’s fucked.
I don’t want to say all programmers or tech workers are like that, but I don’t like what I’ve seen so far from people with a .programming suffix on their names. 
As a millenial programmer, I think you’re spot on. The previous gen and some of the older millenials still remember the old internet of chat rooms, forums, IRC, etc. Lemmy and Reddit are very similar. It’s familiar and nostalgic and I think ends up drawing more of the older crowd. Older non-programmers are stereotypically not really tech savvy enough or don’t have that old nostalgia driving them to use Lemmy. That may be why you see this behavior more from that community.