Very interesting video I have just found. The expert in online dating explains why you should not use perfect picture for your profile. It may sounds a little weird but according to her, when you look too good in a photo, your profile viewers may think they do not have a chance with you. So they will not bother contacting you.
But it does not mean that you should upload very bad picture. You should find a good picture of you where you look very natural and not like a model so other users of a particular dating website can send you a message.