I don't know if this is the right term for this but: ironic/sarcastic horniness.

The way they say "OH HOHO IM SUCH A DEGENERATE" when they talk about how they like milfs, tomboys and goths.
The obsessive need to "justify" their horniness for e.g. furries, kemonomimi, monsters.
Sometimes how they keep trying to "outhorny" one another by claiming increasingly absurd things they would have sex with (even when they wouldn't in actuality)

Other grievances are the tendency to refer to beautiful/cute characters as "gooner slop" (sorry if rule 8), and their aggression against anyone who likes "immoral/unethical/scum" characters.