@liaizon not sure what you mean exactly, but:
multi-accounting is great, and is probably a feature that could be explained better to non-fedizens (I don't like that term, but basically, people not already familiar with the fediverse - because as you said in this thread elsewhere, it's mostly nerds and weirdos who end up here and stick around)
the apps that people can currently use to experience the fediverse lean more tool than experience. not sure who said that "Mastodon is a party bus, Pleroma is a mech suit" but basically, I think from the perspective of people used to walled garden experiences, who never look at settings, Mastodon is this very intricate thing that you need to set up in order to make it work the way you want it to or expect it to
when people log in, fedizens are often very friendly to newbies but a lot of how they help is like "here's some homework for you!"
and even that's a mixed bag. it might be that no one is friendly to you because you're on a shit server, not that it's your fault, necessarily. obviously there are issues of harassment that happen too, which might come off as initially worse on here than it is in a walled garden
it seems like the best response is on the app level. one could take an app that makes multiaccounting very easy - I think #Tusky is a great option, personally, but there are others - and add some actually game-like features. I've seen bad example of this, like how every time I make a Discourse account (I believe), I get a star for making my first post, looking at my Settings for the first time, or whatever, lol
but you could offer, like, an animated intro - which an experienced user could skip. perhaps offering a better array of generalist, public servers, and even offering to make another identity or two, so people get the concept right away