If you're thinking of trying Mastodon, I would recommend joining an interest-specific or locality-specific server rather than one of the general purpose servers, because the local community is likely to be stronger and more engaged. You can always jump ship later if you find it's not your thing Some examples: - https://fosstodon.org for FOSS - https://infosec.exchange for infosec - https://sfba.social for the bay are…
Im very surprised that, among techies, there aren't more people running their own instance as a solo user, so that they can own the entire username including the domain name. It's what I did for myself (Follow me! @jerome@leclan.ch), following Simon Willison's post: https://til.simonwillison.net/mastodon/custom-domain-mastodo...
Some of that could be improved with UI changes but to address it satisfactorily probably requires the server to do some proactive crawling beyond what’s dropped in your inbox.
For just ownership of identity keep an eye on this issue: