The stats are irrelevant, imo. What matters is how useful lemmy is both to average users and specialty users.
Right now, the more niche the hobby/interest is, the less useful lemmy is unless it fits into the handful of subjects that lemmites grok.
That being said, for general use, lemmy is great. Plenty of memes, plenty discussion about subjects of general interest, and plenty of posts for casual scrolling on the john. In that regard, it’s better than bigger forums because you don’t have to scroll through a dozen fake posts to find things that interested a fellow human.
I can usually, on bad days when I’m not very mobile, spend an hour or so on lemmy before I get back to where I had previously left off. That’s about the sweet spot, imo.
Project mayhem needs to take his balls