Most humans are picky when it comes to potential mates. Its biology, can't argue it, can win over it. It is there and we as a species are deluded into thinking that we are beyond our animal drives.
Regardless of sexual orientation.
You are noticing it in the gay community because, I assume, you are trying to date gay guys thus are more aware of the 'politics' of gay dating and its scene.
I think, judging from all of those periodicals and research papers I have read through the years, that males are surprisingly a bit more picky than females when it comes to physical demands that they make for their potential partners.
Therefore we have a sick society that sets impossibly high standards on 'beauty' when it comes to the females of the species. And that is not something new - we have a long history of women doing horrific things to themselves in order to be 'pretty' from the foot binding to having ribs removed. Today its breast implants, hair dyes, and plastic surgery. Many women are injecting known deadly toxins into their face in order to achieve an unrealistic ideal of beauty - Botox.
Historically men are allowed to be a bit fat, a bit wrinkling, a bit out of shape and women still love them. This is the female lack of interest in physical beauty that allowed men to be dumpy.
Male personalities being what they are is what affects a lot of the interpersonal relationships in the gay community. And Women's personalities affect a lot of what happens in the lesbian community. For instance, the on going joke is that lesbians go from relationship to relationship while gay men are promiscuous.
That is not a feature of gay/lesbian hard-wiring, that is a feature of gender wiring. That is a feature of how the sexes work toward insuring the survival of the DNA.
Woman is even more judgmental and demanding in her potential mates than man. However her judgments are based on things one can't see -
such as scent. Women are indeed more attracted to potential protectors and providers. Thus the predilection of the 'bad-boy' persona (which is one far more able to potentially provide), or older man.
"Pickiness" is driven by biology. Women have a short term shelf life of sexual reproduction. They reach a certain age and suddenly cease putting eggs out. Your biology as a male knows this and while you may be more attracted to males than females you are still predominately hardwired to seek a mate who is young enough to bear young. Thus there is a lot of gay men who appear to be more keen on getting a younger mate. That is biology, not personal tastes.
And its the underlying driving motivation for all of those age creams, massive amounts of makeup and hair dyes and women making war on the hands of time far much more than males.
Humans are like any other life form on earth. Their single purpose in life is to insure their DNA survives to the next generation. Relationships, pair bonding, mate seeking is all driven by that motivation.
You are not dating and seeking a life partner for YOU - you are seeking one to meet the needs of your DNA and one that will insure that your DNA will have a better chance of surviving in the future generation. This applies to all humans.
Due to the complexities of life on earth and the remarkable diversity when it comes to how DNA survives or what features a potential mate has that insures the survival of DNA there is a bit of contradiction when comparing individuals to the species as a whole in their dating habits and what they seek in a mate.
Gay males are more brain wired like woman. However this feature does not apply equally to all gay men and may address many of the interesting features of 'gay society' and how gay males seeks various things in a mate.
Such as height. A taller man works less at providing security than a short man. Tall is feared/respected far much more than short. Short is often better protected by all - this ties in to humans being hardwired to protect its shortest members - children.
Intelligence insures survival for the species, thus yes some people will indeed place more emphasis on ability to think.