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.
baskauskas.tumblr.com
"You consider yourself a happy person"
baskauskas.tumblr.com
"You read Cosmopolitan"
baskauskas.tumblr.com
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