Agreed. I once had someone block me because I said something negative about a fandom they liked. It created some awkward moments when our mutual friend was talking to them in a way that looked invisible to me, but I chalked it up to "my friend has a weird erratic friend" and didn't think about it outside of the times when I got reminded.

All these people crying about being blocked by strangers are either projecting unrelated experiences or have some very intense anxiety that they shouldn't be expecting other people to deal with. Your mental health is nobody else's responsibility.