This must be the most comprehensive list on any dating site.
The dating site OKCupid gives users the option to fill in a 'message me if' section, which is usually for a few jokes, or to clarify exactly what the user is looking for.
However, Tumblr user baskauskas was messaged by a guy who used it to post this list of dealbreakers. Warning: It is long.
"You consider yourself a happy person"
"You read Cosmopolitan"
