I'm just sharing my opinion as to why people may want the influx of people via Meta et al.
And it's not like I haven't ever participated - the very first "Live Thread" I've ever participated in sports-wise was the Nuggets' clinching game to win the NBA championship. It was a ton of fun, and had me extremely hopeful. But it's tough to keep that kind of personal momentum.
Although that was on my Lemmy account (I joined that first, but I've kinda fallen more in love with kbin).
I dunno, I don't really have the energy or free-time to be a part of something like that from scratch - especially during the doldrums of the sports year (late-June through August). I'm almost 40 and just don't have the ability or drive to contribute all that much. Whether here or on Mastodon.
At the moment, I'm trying to put my energy into starting up niche communities/magazines for my favorite content creators in The Majority Report and Behind the Bastards.
But you're right, I should be the change I want to see. Hopefully come the NFL season, I'll have found some sort of foothold for contributing to the various communities.