Does it actually matter?
You know that you can follow your desired communities from other servers, all with e.g. the lemmy.ml account?
Yeah, but there’s at least one community I’ve found that’s on an instance that have defederated my main, so what I posted there the other day gained zero traction, and only found out the reason last night (re-found the community through Mastodon and couldn’t see my own post). So having alt accounts for those edge cases is my thinking
Plus I post sightly different things on my nsfw account compared to this one 🤣