I don't care one bit that people lewd. That's never bothered me but I absolutely detest when they refuse to keep it private. This includes the ones that are constantly patting each other or giggling and being overly affectionate right in the middle of the main meetups. Anyone would be very uncomfortable if say a bunch of unironic prancing lala homo men showed up and started groping eachother in the middle of a party with all your friends. The social dynamic is really no different here. 
I can't even begin to understand what goes through these coomers minds.