Skype contact requests. Add people you don't know?

I recently signed up to use Skype. I’m getting lots of requests from members of the opposite gender to add them as contacts. They typically read like this one:
“hey there.. I was browsing who’s online and i discovered your name.. and you seemed cool ”

Are these all what I imagine, just come-ons or people looking to exploit lonely hearts? Any way to check out what their intention might be?