I think most people have no problem stating what they want. Too often though they use that space to rattle off what "they don't want".
For example a woman may say, "No players, no liars, no cheaters, no games, No drama...etc"
Apparently they (really believe) if a so called "player" is attracted to them and reads that he'll say to himself; "Aw snap! She doesn't want any players or liars! I guess I better move on to the next profile." LOL!
If anything listing all the things (you don't want) is a "turn off" to good guys! It sends them a signal of the type of guys you have been dating in the past. It's hard to attract positive people with a negative spill. The perception is you have a chip on your shoulder, you're bitter/angry, unhappy, and have a combative personality.
The following wants/traits sound much more appealing.
Attractive, Positive, Affectionate, Considerate, Loving, Healthy, Romantic, Passionate, Great Sense of Humor, Intelligent, enjoys traveling to exotic destinations, Honest, Trustworthy, Loyal, Dependable, Financially secure/responsible…etc
When one is clear about what they want there is no need to list what they (don't) want. Those are the types of things I would list and then I'd mention things I enjoy doing along with my overall outlook on life.
Everything I state would be the truth and not something to sound "politically correct".
If it's not on my "want list" it's because I don't want it! :)