I have enough sites I need to sign into daily to check vanilla messages, FB, Yahoo, business emails...so many I'm suffering from duplicity-sickness and it takes half a day just to answer, so I certainly am not going to ADD another (or make up a series of "disposable" email accounts as someone suggested) just so I can CHASE someone who wants to make things less convenient for me. No thanks. If someone new wants to converse with me they will just have to be happy with using the CS messaging system. People here are constantly giving me their phone number within the first few messages. Thanks, but I'm not going to give them mine. If I get to know them enough that I want to Skype, I'll do that, or eventually meet them for lunch.
People should be more careful with their identity and personal info nowadays. Scammers are using all sites now, and anything you give to them like email, phone number, etc., they can either sell or probably use for something illegal, especially if it has your name in it.