He notes, first, that lying is common. People lie in the direction that we would expect, given social desirability. Men, for example, tend to exaggerate their height; women tend to exaggerate their thinness:
Since people also tend to restrict their searches according to social desirability (looking for taller men and thinner women), these lies will result in your being included in a greater proportion of searches. So, if you lie, you are more likely to actually go on a date.
During which, Ruggles explains, things are unlikely to fall to pieces (provided your lie was small).
It turns out that people's stated preferences have a weak relationship to who they actually like. Stated preferences, one study found, "seemed to vanish when it came time to choose a partner in physical space."
"It turns out," Ruggles writes, that "we have pretty much no clue what we actually want in a partner."
So lie! A little! Lie away!
And, also, don't be so picky. You never know.