On the Lemmy specific front, Active daily users seems to still be stabilising following the exodus from elsewhere, Comments and Posts both seem to be on the rise though – promising stats all in all.
But why should do you need some algorithm to find some people to follow? Unless you talk about a search algorithm?
No, I’m talking about the hypothetical algorithm that fills a page with things you might be interested in. Twitter has it (even though it’s not necessarily good), even Reddit these days has some of that, it’s a feature in most social media websites and sometimes quite a useful one, and Mastodon just lacks it altogether.