Keep in mind this is not "lemmy vs reddit". Browsing through this index [1] you see moderators and users migrate also to platforms like kbin, discord, discourse and matrix
I didn't even know about kbin [2] but it seems like another solid fediverse presence. This multiplicity of platforms (ruby, php, rust, python, go, elixir, you name it) that all adhere to a protocol is intrinsic to this "movement" [3] and it is what makes it vaguely... inspiring. Echoes of an earlier, more optimistic time.