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
The average user cares about the health and quality of the platform though and a declining user-base is not good for either of those.
Sure, we don’t want to be flooded with millions of users either but that’s because we have a distinct lack of mod tools and features to deal with it. The solution is better tools and better ways of handling those users, not to keep the platform isolated and haemorrhaging users.