Poster 1:
"Homosexual" instead of gay/lesbian, especially when used as a noun. "Female" as a noun as well. Basically anytime overly clinical/detached/"scientific" language is used to describe marginalized groups.
Poster 2:
"Female" alone doesn't bother me so much as "females and men". Or even the rare "males and women", though that doesn't come up often at all.
Well, so let us find out how often those are used, compared with the "males and women" equivalent.
Google Topsy All Time "females and men" 2.280.000 4,096 "men and females" 16.500.000 3,370 "males and women" 38.200.000 477 "women and males" 1.520.000 279
Apparently there are huge differences depending on the community. I did try searching reddit but did get too few results. Maybe not even the best way too search for those terms.