Nice guys are rare and, according to this thread, often not seen by women. This is because they are unlikely to get in your face. Decent men have thought through lifes relationship issues and do not define themselves by the attention they receive from women. They define themselves by their own acheivements.
Have you wondered why women are so often in a relationship crisis when they are with men who are not shy or reserved...the one that swept her off her feet...the one who bullies her relentlessly with emotional games and controlling behaviour...the one who screwed three of her friends then begged to be able to come back? Because those men need the attention of women to feel fulfilled. They throw themselves at women (which adds to the illusion that nice guys are not there). Men who are that needy are unlikely to have considered how to actually make a relationship work. They are also unlikey to have a great deal to offer once they have chalked up another conquest.
Nice guys may appear gay or taken because they dont pursue women the way that women have become used to from the needy tools. They are not gay and they are too clever to be taken ("owned"). They dont throw themselves at women because nice guys are capable of living life for itself and not for their partner. They are not dependent on the emotional crutch of a relationship.
Nice guys are are rare and sought after. They are the coolest people on the planet.

OMG!!!

I had a brain scan done today, and they found there was nothing there!

WOW! That explains so much! (heehee)

...with that thing!

How do you establish & maintain eye contact when they seem to just want to look at somethin' else?