It seems like a very practical "solution" to me. The idea is to facilitate folks having their own space where they can "feel" comfortable without making others feel the opposite. What is wrong with that? It tends to mitigate a certain negative economic externality here does it not?
Because it's a freaking park? If you want to designate a space for dudes to get together for anonymous sex, fine, my beef is that it's in a freaking park. Don't they have gay clubs there? Designate gay clubs as the place for anonymous gay sex.
But you see, that would be a violation of a gay club's right of establishment to opt
not to permit anonymous gay sex in their corridors. After all, what if it were a classy, Godfearin' establishment?
No, no. Much better to put those socialized parks to some use, me thinks. Be best to get rid of them utterly, but barring that, make them bastions of personal liberty.