Wow well it looks like I kicked a hornets nest or something, who would have thought that one persons opinion would rattle so many cages. Any who...
Give us an example of one of these messages that's not been responded to and maybe you might get some constructive help?
Well what I normally do is read someone's page and if they seem like they would be fun to talk to I would type something along the lines of this.
"Hey there I was reading your profile and you sound like a cool person to talk to. I was hoping we could chat some and get the chance to know each other a little."
Or something like that. I suck at starting conversations.