No, this was on /sub, and I've been aggressively curating my subscriptions and blocking things I don't have any interest in.
Even looking now on /all with incognito, though, there's only 2 even about Lemmy. I do see a few from 196. There's posts about atheism, random tips from @youshouldknow, a Cosplayer, quite a few memes and shitposts, some political content about Florida, a nice flower, movie news, a couple antiwork posts, an article about a new Alzheimer's drug.
It's just not all about the Fediverse. Is it a popular topic? Hell yeah it is, especially considering Threads literally released yesterday, and the API blocks from Reddit are just now rolling out. It's not just popular, it's timely and current too. As those things age, it'll come up less.
I'm afraid half of those people signed in for a day and then left when nothing was happening.
I mean, sure. There's been days where I haunted Kbin/Lemmy then left. But currently, there's very little else that fills the gap of Reddit beyond this. So I keep coming back, and I keep talking. That's how it grows.