All year I've been visiting the global timeline to weed out all and mute the non-participants on Fedi (with the exception of a few I like).
What are non-participants? Those are bots, RSS repeaters, photo only reposters with no credit or alt text (usually porn), and people that only post URLs without interacting with anyone here.
My mute list is probably 10,000+ by now, but hey that leaves ACTUAL people left!