It's a little like saying (back in the homophobic days) that we want to see homosexual men working as bathroom attendants.

Very, very little.

Mainly because bathrooms weren't (AFAIK) effective as places to pick up guys.

Actually men's bathrooms were and are notorious for homosexual activity and many gay men were arrested there for that reason, including prominent ones. Even in more modern times, prominent people like British singer George Michael and US senator Larry Craig have been arrested in such cases.

https://en.wikipedia.org/wiki/Larry_Craig_scandal

https://en.wikipedia.org/wiki/Walter_Jenkins#Scandal_and_resignation

https://en.wikipedia.org/wiki/George_Michael#Anonymous_sex

https://en.wikipedia.org/wiki/Ron_Davies_%28Welsh_politician%29#.22Moment_of_Madness.22_and_after

https://en.wikipedia.org/wiki/Cottaging#Timeline_of_historic_cases