Yeah I’ve never seen it either. However, I was curious if it was because instances were blocking it (as in fedipact).

Checking out Lemmy.world, I noticed threads is actually listed as a linked server. So at some point, lemmy.world has traded content with threads.net.

Though I can’t actually find the content. And there don’t seem to be any threads.net users (except a couple who wrote it in their display name as some sort of joke), so perhaps there are some threads users who are following lemmy communities but haven’t commented (or aren’t able to)?