If it happened to npubs who are not connected, but since we are in touch it's really kind of harmful.

I don't know why it happens but it did happen to me too, so I now have a daily script run which backs up contacts and tracks changes. I have also seen a few times that people show as blocked when I haven't blocked them. This usually happens when someone I follow quotes someone else, I like it and go to check out that new account only to find I've apparently blocked it. 🤔

Oh wow... now thats crazy... 💯