I am unblocking people on my block list. I do not even know them or how or why they were blocked.

I always make a note as to why I block someone. If it's an offence of extremity (racist posting, always negative/personally offensive) they stay blocked. Otherwise I often 'forgive' and give them another chance.

I feel thankful to now have some breathing room after getting unblocked.

You'd probably have to at least click someone's profile to accidentally block someone. Not sure if a confirmation dialog appears when you click it.

it was probably a comment they made that bothered you - at least thats how it is for me

I only block someone if I really mean it, and I never unblock anyone because of that. So once a year or so I just free up blocks by going through and removing anyone who’s profile pic has become that purplish X 🤷‍♂

Hello there! I'm your long lost non-blocked person :)

Thats what notes are for to remember why you blocked someone lol

Don't do it!