That's horrible. Aside from the fact that it is impossible to understand why anybody of any sexual persuasion would see a reeking men's room as the ideal boudoir, I am totally puzzled by the passivity of the authorities. They let these guys get away with it. It's nasty, offensive to public health and morals, and in the case of guys stalking kids, undeniably illegal. Yet virtually all local police departments turn a blind eye to it.
A few of the gay community have been hauled off but it seems to be only a temporary deterrent.
The gay political pressure groups have won the extinction of the old vice squads that would have cracked down on this kind of stuff. And, despite no longer needing to meet furtively in public toilets because their activity is no longer illegal, the Love that Dares Not Speak its Name still does it because it gets a charge out of publicly exposing itself - it is the apogee of narcissism.