They are embarrassed!

Explain someone please. Why on dating sites many girls indicate in the questionnaire "I am looking for a guy", for the purpose of "Friendship and communication, correspondence"? Do you lack communication with guys? Or are they embarrassed to put in the "target" something more? I will not understand...
and----
If a girl puts in the questionnaire "I want sex", she will get such offers! Moreover, if you explain that you want sex, but not with this individual, you will be offended, you will start watering the shit. If you want sex, it doesn’t matter with whom, right? Girls are very, very, very different with whom. Even if you really want.