I find that a lot of online profiles are cookie-cookie in style. Everyone wants someone who "loves to laugh, kind, honest, likes to have fun, trustworthy" etc. I've never seen a profile that said, "I really want someone who's mean, not trustworthy, totally boring, and lies to me."That's why it can be a bit difficult to gauge someone based on their profile, unless they do an excellent job of explaining themself as a person and more than just the basics.
Just a tip for those who want to make an online dating profile. Talk about your passions, what you like to do, your type of humor, etc. Because like zao said, honesty (among the other things I listed and more) should just be givens in a relationship. To me, if all someone's profile is are vague descriptions ("I'm funny, I like music. Hit me up if you want fun relationship") that doesn't show much depth to me.