The account that's hosted on mastodon.social (@atomicpoet) gets a lot of attention because I talk a lot about social media, economics, and tech.
But I also have other accounts that touch on other topics.
For example, @atomicpoet@peerverse.space talks about music and photography -- these are topics that are also important to me, and I want to talk about them. Folks who follow me on mastodon.social don't care so much about that stuff -- and that's fine.
The Fediverse allows for more space.