[soneil]

I think it'd be great if there was a way to push the identity through a different domain. @[e-mail] or such. Needing subdomains is so clunky - imagine if you were [e-mail], yuck.

We can get half way there with /.well-known/webfinger - but the alias that provides doesn't show up in the feed, so that's not the username I find from links like OP's.

[scrollaway]

There is a way in activitypub, but Mastodon itself doesn't support it well. Takahē supports it (https://jointakahe.org/).