Seems like it's driven by the financial institutions, many porn sites have issues with credit card companies, this is from the sexlikereal forums

[quote] [b] Okay folks, this is serious - No Alcohol, No drugs, No Nonconsensual [/b]

Simply put there are rules by banks, billings, MasterCard and Visa and all the other institutions you have to comply with in order to stay in business. Most of porn companies play relatively successful whack-a-mole game going from one company to another while we wont to establish a solid foundation and make SLR a great place for everyone. Tell you what. Banks get shut, companies get shut for a reason and we do not want to be a part of that. We have no say in this game.

The worst thing is that we don't even know those exact rules, especially since every other company have their own rules and what is more important their own way to interpret the rules. Yet we have an idea what it is all about and trying to do our best to make it work for everyone.

SLR is about getting the best of grown people having consensual sex.

It also means there will be:

    no alcohol, even if passive on the scene. We will try to re-edit or blur where possible to keep the scene live.
    stop words have to stay completely out of the site. We would have to replace those with ***** in comments and will mark these as "This post was automatically moderated to comply with website policies". Because there are crawlers checking SLR 24/7 for those.
    no guns, no knifes, nothing forced or non-consensual
    no drugs, hypnosis or anything.
    pissing is ok, but no pee drinking.
    JAV is in trouble

We are already working on these. We can't disclose our exact policies, but we will do our best to communicate things with our community and creators.