Dirty porn is for people and gays who have strong stamina for porn, who are not sensitive and do not easily get grossed out-this is on an extreme level that can only be watched and digested by the horniest gay men alive.
When it comes to gay porn, the thing that makes it better easier than other kinds of LGBT porn is that it is extremely dirty and kinky, they will make sure that at some point you will find them disgusting and gross.