Was implemented due to PopAds abusing their domains, sure it was a bit heavy handed (they basically have revolving domain names), As you see they register garbage domain names.

We initially trialed out block of .bid domains (this was the first set of domains that was being was being blocked), PopAds then decided to abuse the .club domains, when we blocked this and start doing the same thing.

All we blocked was a certain type of request from these domains (third-party script requests only). Basically the rarity of .bid and club domains, I thought it wouldn't affect anyone.

I didn't relise you guys used the .club domain. My apologies.