Has Meta launched anything successful since Facebook? I mean, they own a bunch of successful products but it was all acquired rather than developed by the company. Meanwhile stuff like the Metaverse were so obviously doomed from the start, you have to doubt the judgement of the people in charge. Maybe Threads can challenge Twitter, and maybe launching it off Instagram will give it the starting weight it needs to snowball but... I dunno, I doubt it.
Twitter is spiralling, but that doesn't mean that Threads is going to take its place. None of the heirs-to-be are looking all that likely to hit the big time right now.
Instagram is pretty successful.