Yeah, Lemmy is pretty small. Even I miss the massive subreddits or moreso the small niche ones.
I will point out that Reddit is roughly 20 years old and that audience took time to grow. I don't really want Lemmy to grow that much because it does bring the riffraff that plaged reddit, but it is pretty lonely out here in the corner of the internet. I do find myself refreshing apps hoping for new content quite often.
The outcome is sort of the same if those kilograms break rules in front of a 2 ton brick obeying laws.