You make a mistake in assuming all homosexuals embrace the "out" culture which excessively promotes pleasure-based happiness and go hand-in-hand with the ghetto/club culture of anonymous sex, addiction, disease, etc.
I've known a number of homosexuals who aren't part of that behavior pattern and even openly embarrassed by its close identification with being homosexual. They may not be happy but they aren't drowning their sorrows in the manners you describe. This group, described in the article, seems to be a reaction to a bit of disgust with the "out" or "club" sub-cultures of the gay community. I applaud their efforts.
causing a place to have a homosexual reputation is a sure fire way to kill a business frequented by normal people.
Their conduct is disgusting because they are endangering businesses with their stigma. IF homosexuals were really as you say then they should just go about their business instead of trying to “mark territory”, even temporarily, at the expense of honest business.
If there are a RARE minority as you say, then they are VERY VERY RARE. It seems exhibitionist style presentations to publicly declare how they pop orgams are just part of their sexual fetish.