Reddit’s sports subs were small for a long time. I think there would need to be either a sports sub exodus or a lot more lemmy users before there are enough active posters into sports discussion/gossip during the week to keep engagement up and lively between games.

I was part of the baseball sub for my local major market mlb team for years and it was really just the last three or four years it was consistently active between games and even when I left (api exodus) it was the same 30 or so people on game threads.

I am hopeful that Lemmy will eventually grow large enough to supply the numerical and geographical base for good sports stuff. It doesn’t take many active participants but the 100 - 10 - 1 rule I think is much more acutely felt in less populous spaces.