Reddit's great strength was that it was big enough that niche communities could attract enough users to have interesting conversations and a steady flow of content, and if you are a Reddit refugee looking for those sorts of communities you aren't likely to find them on Lemmy. I've more or less made my peace with that, but if you're not the kind to stand on principle, a falling user count is bad news for the hope that the Fediverse might snowball into the sort of place that can support discussions about your passions and hobbies even if they're not the sort of thing that is popular with a specific set of tech-savvy anti-capitalist leftwing activists (and I say this with love as a fellow tech-savvy leftie... but y'all got one-track minds and it shows in what communities live and die around here).