I'm not exactly sure where, how or why people would join Threads, but if it's going to be part of the fediverse I wouldn't be all against it.

I probably wouldn't join it, but I think it would be better for the Meta-users to be exposed to the internet outside of the environment controlled by Meta.

There's a reason why everyone is angry on Facebook. Hint: It isn't that everyone is angry. It's because "engagement" is encouraged.

If they were exposed to a place where people could choose more freely to engage with anger, they'd be surprised with how little people actually respond to shit/rant postings. It's perfectly fine to rant and shitpost, but the fediverse definitely shows that there is more to the internet than that. I won't mind giving it a shot at showing them. (As long as I can block the entire thing at any time I want.)