I tried to register myself in this forum last Monday. However, the activation mails never arrived. I tried two different mail addresses.
Then I tried to send a mail to firstname.lastname@example.org which also failed because it seems there is no mail server configured within the domain.
Failure message was:
#< #5.0.0 smtp; 5.1.2 - Bad destination host ‘Multiple DNS queries were attempted and failed: DNS Hard Error looking up fuckyou.monkeyengine.com (A): NXDomain’ (delivery attempts: 0)> #SMTP#
Finally, I could track down Kirill (shadowislord) by checking the contributors on the github page. He activated my account so I am now able to participate here.
So technically, nobody is able to register new users at the forum currently.