I tried signing up to try answering some of the unanswered Mbin questions, but it's telling me it can't confirm my account. I double checked the handle, tried with and without the @ in front, copied it directly from my profile, and I tried using webfinger manually to see if it replies with cloudflare (it doesn't). This happens with both the private message and profile code options.

Not sure if others using Mbin have the same issue or if it's the instance. What does it actually check to confirm the account (before sending the private message or giving me the code to put on the profile)? It doesn't seem to be a simple webfinger lookup.