@Lockdownyourlife I can definitely see shared reporting systems in the plural happening. Even if users don't all adopt the same system, having multiple publicly accessible, searchable systems, together with standards for inclusion (like evidence) would be a massive improvement over the current approaches.
It doesn't help that a) some instances keep their lists of moderated servers/individuals private for reasons essentially reducible to security by obscurity and b) that there are cases where the fediblock hashtag has been abused to spread malicious disinfo about others, causing that system to be seen as less trustworthy. (Currently the instance I'm on is on the receiving end of a drama caused by a bad actor spreading disinformation that way.)