no replies???

I simply want to know why so many people on this site (and other sites) are too rude to reply when I send them a message. I usually write to guys that I am interested in meeting. If they don't want to meet me, why can't they tell me so. I mean... I take the time to write to them. Is it so freakin' difficult for them to say a simple "sorry, not interested". This really pisses me off. So many people have no manners. Their parents must be so proud that they raised such rude children... then again, their parents are probably the same. Thanks for letting me vent... :o)