A popular feature of BlueSky that really gets new users’ feeds going is their Starter Packs.
Mastodon Migration Blog is replicating this good idea for the Fediverse with follow packs. These are csv files that can be downloaded and imported into Mastodon to follow a bunch of users around a topic.
I mean, yeah. Especially when the content of your flawlessly customised site is federated to thousands other activity pub enabled sites with different stylesheets and aesthetics. That isn’t a problem with Mastodon per se, it’s just the nature of federation.
I do agree with your broader point that Mastodon has become synonymous with fediverse microblogging, which again is what most people associate with the fediverse, period.
The issue isn’t where the content lands, it’s the erasure of the local. The idea of branding is to help create a local community on the server that has access to the rest of the social web, rather than an impersonal general node on the network.
What we really want is people who are into, I don’t know, really into Mazdas coming together to talk to each other on MazdaFans.social, with bespoke theming and branding, while also having access to anything else that they want from startrek.social, weirdbugs.social, etc. What we have is everyone on generic omninodes looking for hashtag mazda, totally unsure if they’ll find anything.