@cdevroe @pfefferle I think the most robust way to do it would be to allow this webfinger pattern to work: https://pfefferle.org/.well-known/webfinger?resource=acct:https://pfefferle.org , where the account resource is a link to an activitypub profile
Right now, WP blogs only respond to https://pfefferle.org/.well-known/webfinger?resource=acct:pfefferle.org@pfefferle.org , where the account resource is the username@domain scheme
Other platforms such as mastodon correctly respond to both webfinger requests, which is how streetpass works! i'm happy to open up a PR this week! both requests are spec-compliant btw