It is probably due to a number of people stopping using their alts after some instance hopping.
Also a few people who came to see how it was, and weren’t attracted enough to become regular visitors.
Curious to see at which number we’ll stabilize.
Next peak will probably happen after either major features release (e.g. exhaustive mod tools allowing reluctant communities to move from Reddit) or the next Reddit fuck up (e.g. removing old.reddit)
Stats on each server: https://lemmy.fediverse.observer/list
You said Lemmy can’t attract new users at this point, I provided the evidence new people are this getting into the platform, it’s just that statistics is overrided by people leaving us since reddit became usable yet again. It’s one-time event though, just like reddit exodus was, so user growth will be positive again soon.