As I said in my initial comment, I get a good response to my contact attempts, because I write interesting, literate and polite emails. When I see, from various other forums, what some people actually do to try and contact their matches, it's hardly surprising that they don't get replies. It's so important to be polite, and interesting. Just saying, "how are you related to me?' isn't going to get a reply.
I also think it's very important to write a contact letter that is literate and correctly spelled. If you get some gibberish from somebody, you're going to think that's how efficiently they research their own family tree.
Thank you for replying.
Zaph