Maybe it is a glitch in either the spamfikter or the reported user function, I don't know... But I have had to unblock people by following them. In one case I only noticed cos I have the pingstr thing set up which alerts me of DMs via a telegram message, and they happened to message me. There was no big red button, no indication at all. There's been a handful of people I've seen to date, and it's just people noticing and alerting. For example plebstr was showing me these user replies whilst amethyst was not. There was also no 'show anyway' option or anything. Which makes me wonder if amethyst is doing something different (?)