Instagram has like over a billion users. They definitely aren't automatically signing people up.

Jury is still out on Twitter. It very well could fail.

It just didn't happen the instant Musk entered the building. This type of thing usually happens on longer timeframes. Digg died unusually fast.

I mean some people just want a social media app without Elon Musk...

You still have to create a profile on Threads when you set it up. Instagram is waaaay bigger than just 10 million users.

I mean Reddit isn't a predominantly right wing platform (yet)