I actually don't even know what PR stands for lol 😠but how about an alert that comes up and warns you 'this user has been marked as spam' and you can uncheck them if you don't want them blocked? I have no idea lol.
Also there is a lack of transparency on how the adopted blocklist works. Is it still if 5 people you follow mute/block someone, they also get blocked for you? Has that changed? Is it still 5? What if it's a more prominent user? I believe you have been muted by a few people, will you appear on the spam filter/ adopted blocklist or are you exempt?