Probably better to post in the github issue rather than replying here.
Any implementation is of course free to use a reputation system, but it seems hard to implement. You don’t necessarily know all the votes a remote user has received. Say you get a vote to a post from a user who you’ve never heard about before. But actually this user is a well-respected member of their own instance and has been on that instance for years. Meanwhile, your instance believes this is an inactive spammer or new account or something.
Couldn’t you have the main instance take care of it? I don’t exactly know how activitypub handles votes but if they’re reported back to the users home instance it could be calculated there.
For example if I had a reputation of 12 and I posted on a different instance and got enough votes to get 1 extra reputation those votes would be reported back to my instance which would update my rep accordingly.
But how would I, an external instance, know your true reputation? Would I need to ask your home instance and just trust that? So when I ask “what level of trust should I put in this user”, a malicious instance could just say “a million reputation points” and I just need to trust that? I don’t see how this is going to work.
