I don't want to rain on your parade but I'll do it anyway: The numbers of active posts and members in Lemmy communities, even in the most active ones, are mindbogglingly low in comparison with Reddit, even in comparison to somethingawful what I still consider the dirty cousin of Reddit.
All the numbers are just two sizes lower than Reddit and then there is the atrocious web interface. I have stopped counting how often my posts got eaten, the reply button didn't react and general stuff didn't work at all.