And it appears that NeoWin ( also an IPB user ) was the first victim.
From their Facebook page ...
Quick update. ICANN revoked neowin.net because one of the email addresses attached to our domain registrar didn't work/no longer exists. I've appealed the decision which normally takes 24-48 hours and also have been in contact with our domain registrar to update the incorrect email address. Once ICANN has responded I'll know more. The WHOIS for Neowin was for the most part up to date except for that one email address.
This is a new ICANN regulation, folks. Effective since January 2014. ICANN are requiring domain owners to confirm their WHOIS email address periodically starting this year. After multiple failed verification attempts, ICANN revokes the domain.
Correct, we fudged up there. The email linked with our account no longer works..
Just a heads up for Xper and other site owners to be aware of this. ( At this writing NeoWin has an offsite mirror at http://neow.in. )