@HerraBRE !OStatus (via /.well-known/host-meta and LRDD such as #WebFinger) lets you create aliases on any given domain name. Your alias in !OStatus is just like #WebID, any random string. However, implementations seem to assume it should be a full WebFinger ID such as http://status.hackerposse.com/url/6735 (which is actually just the human-friendly way to address a l…
@clacke doesn't nätter what the default for a WebFinger request is because the RFC states that the client MUST provide content type negotiation.
That's why the fallback default for !gnusocial is an XRD, because it's much more parsable.
And yes host-meta lookup was unfortunately removed but that doesn't matter since WebFinger can still reply with proper offsite URLs for the various feeds, such as updates-from etc.