"Is this overkill?" -ducktrshessami 2019
A supplement for blocking people when they still affect your life (are in group chats with you). Don't ask when this would ever happen. It really just be like that sometimes.
I've also noticed Messenger clears localStorage every now and then like they're the only people who use it. So, every now and then you might come back to a conversation that has a blacklisted name in the latest message. I don't see this being fixed unless this script gets ported to an extension, which I personally won't be doing.