Yeah, the "mastodon.world" framing is.... not good.
When I first made MULTIVERSE, I made the URL piefed.soulism.net. Then, I changed My mind. Now it's multiverse.soulism.net. I am not offering people piefed. I'm offering people MULTIVERSE. We have our own branding, our own mission, our own values, our own rules. I have no interest on selling normies on the idea of Piefed. I wanna sell them on MULTIVERSE. MULTIVERSE is not piefed.
But lemmy.world is lemmy. Mastodon.world is mastodon. They do not represent themselves, their own values, their own meaning-making. They represent other projects. And I think that's dishonest and kinda boring, and kinda bad for the fediverse.