Are there any photo hosting restrictions here?

It's unbelievable how invasive some of these photo hosts can be. In one post of one page of one thread I got the following:

imgmega - 6 popups
imagedecode - 9 popups
gallerynova - 11 popups
damimage - 10 popups

As specific as the rules of this forum are, in regard to spam, malware, external links, etc..., it's hard to imagine how hosts like this could be permitted. The Forum Rules thread lists recommended picture hosts, but nothing allowed or forbidden.

Use adblock and you won't see any pop ups at all.