Content with watermarks is usually used by spammers to promote paysites and dating sites, it's why xHamster and many other tubes don't like it. If you own a paysite with affiliate program or a site without it but with cool and unique content, you can
contact xHamster, get a producers account and earn money, as >1000 of webmasters do. If you enjoy bullshit, as user crucifissio - you can post a stupid thread on GFY and be happy.