Currently when adding your Mastodon handle on Mozillians.org it is shown as such:
It would be great, if it were linked (you can just split the handle and then link to https://<server>/@<username> and if it could support Mastodon’s link verification, i.e. actually just add the rel="me" attribute, which is a microformat for “identity-consolidation” as they say. (As such, it may actually add it to all links that you include there)