Apparently, among the questions eharmony.com asks its
victims customers is this doozy: "Are you self aware?" The company prides itself on the depth of this question so much that it includes in its ads a woman who is amazed that no other matchmaking site had ever asked her this before.
But let's think about this for a second. If you fail to be self-aware, you will fail to be aware of this failing of yours and will answer, "Yes, I am self aware." If you are self-aware, you will answer, "Yes, I am self aware." So, how would this question differentiate between site-members.
Answer: It wouldn't. What it would do is make those people who had kicked some money to the site feel that, contrary to fact, they were actually being evaluated based on their character traits, character traits that can be evaluated according to a questionnaire—an empty set if ever there was. I suspect that matchmaking websites have slightly less depth than the psychic around the corner.
NB: In the case of the actually self-aware, this person might actually see themselves as being less than ideally self-aware. So, if anything, there would be a negative correlation between claims to self-awareness and actual self-awareness.