I'm pretty sure 99% of the people I've blocked are just me blocking them after they blocked me.
I lied - I recognize two people that have blocked me. One being Molly Knight, the other being the lady that called herself a Bluesky Elder.
i saw someone the other day who had it in their profile that they counter block and i was like dang i can’t think of a worse way to spend my time than pulling up that list and having to type the full address in just to do that