There may be an age or generational explanation for this, but I especially notice this behavior on Reddit while not nearly as much here on Lemmy (though maybe that’s also a mater of implementation).
It seems many are so quick to assert overly-confident positions, but then hit-and-run with some smarmy remark at even the slightest challenge, then quickly block. Like, not even crazy stuff. Just basic, civil disagreements. I can pretty well predict when it will happen, and it always feels like such a petty ego-sparing fingers-in-ears denial thing to do, and to me if anything shows they were not very confident in their views being challenged.
I think I’ve only blocked a handful of people over a decade who were actively spamming, stalking, or spewing extremely hateful rhetoric and I just reported them simultaneously. You have to cross a pretty extreme and irrational line for me to do that.
The reason I ask is to see if I’m missing something; to better understand the mindset of those who do.
I don’t think I ever blocked anyone on reddit, but I’ve been pretty block happy on lemmy. Mostly because it’s a smaller community. With reddit, it was easy enough to unsubscribe from the big popular communities and focus on my niche interests and rigorously modded communities like askHistorians. That way I mostly saw stuff that was genuinely interesting to me. And if someone was annoying, they were just one voice among thousands.
Here on lemmy, there’s not enough activity to be overly selective, and I actually enjoy the casual vibe of asklemmy, showerthoughts and nostupidquestions. While I’d never visit their reddit counterparts, here the community is small and it feels more personal. But this also means that there’s the occasional poster who I’d rather just not have to see. So, to keep my time on lemmy enjoyable, I block them.
I don’t really think it’s a big deal, I don’t even think it’s a criticism of those posters. It’s really just that the content of their posts / comments are something that doesn’t add value to my experience. I’ve blocked well-intentioned, but obviously teenage, users because I’m not interested in their personal life questions (but they’re entitled to ask!); I blocked someone just for posting too many moth memes when I was getting sick of that fad.
I’m pretty sure I’ve never blocked anyone for disagreeing with me or my beliefs, but if someone seems like their trolling, or simply has such poor social communication skills that they are coming across that way, I’ll block them. I generally look at users history and check if I’m likely to miss anything in the future. But invariably, the type of user I consider blocking generally has a bunch of dumb, negative or uninteresting comments and posts.