outside of being used as a user discovery shortcut, i'm vehemently opposed to webfinger for a multitude of reasons.
the main one being that all software implementing it wants to own the /.well-known endpoint, meaning that it is difficult for you to run multiple software on the same domain (combining diaspora and mastodon/pleroma for example).
the main one being that all software implementing it wants to own the /.well-known endpoint, meaning that it is difficult for you to run multiple software on the same domain (combining diaspora and mastodon/pleroma for example).