@mint hmm.. I feel like we are both misunderstanding each other.. I'm not 100% sure about both of us but I'm 100% sure I'm misunderstanding... I also have a tendecy to practically speak in riddles because so much ends up assumed that I don't speak clearly
I feel like I'm misspeaking because "When receiving such an activity" is already not what I mean. I didn't realize activities are sent not received. I will try my best to explain, sorry to repeat myself.
If your server had 1000 inactive accounts, and those accounts had an average of 50 accounts per server, that's 50k accounts that are sending activities to your server, right? So, my idea was kind of a question: how to stop those inactive accounts from, not only receiving the activities, but also how to stop the sending servers from sending them. It's simply wasted resources on both ends.
You propose mrf but that would probably ddos the sending server since the queue for the sending server would build up and those activities would keep being sent and never received (I suppose the receiving server could lie?)
@mint I don't know why you aren't on pleroma dev team with how much you know but something tells me it has to do with time and/or money and/or don't wanna deal with that