> Who is using Bluesky in the US?

Everyone I know. I routinely see only bluesky links. Yes, if X/Grok is promoting Nazi content, then yeah, I'll hear about it. But beyond that, nothing important that happens isn't showing up on Bluesky.

> Whenever something big happens I keep getting x.com links from friends. Is it just my friends?

I think it's safe to say that if people are sending links to a certain site, they are using that site. But assuming that everyone is using that same site is silly. It doesn't take any amount of effort to realize that other people are using other sites.

> But beyond that, nothing important that happens isn't showing up on Bluesky.

I would Press X to Doubt (perhaps ironically, for this X...). Searching around, it seems like Bluesky has about a tenth as many total users as X has active users, but it's definitely growing at a faster rate, and X might be declining in active users.

Anecdotally, lots of people I noticed leaving for Bluesky very loudly and publicly quietly returned to posting on X after a while.