There are many npubs that have me muted, and with most of them, I still like and reply to their posts sometimes, since they still make engaging posts, and the muting could be accidental. I think it's important to be careful not to mute or block people who don't deserve it.
However, I am have now muted the following users who have me muted and are particularly low-quality and/or sus:
I'm mainly posting this to point out that #nostr might be taking a page from the book of "blocksky" sadly.
If you want to see who has you (or whoever) muted, nostrudel.ninja has a tab for checking that in the profile view.