Would you like a messenger that stores a temporary key that you can give out on the internet for other people to connect with you?<p>When you are done, you can generate a new key so that you stop getting connected by random strangers.
So, disposable user names / screen names for instant messaging? That would be good. It would be convenient to allow "username+filterword" as a contact address, the way gmail and spamgourmet do.<p>Most of the existing 'disposable' ones are web based chatrooms. <a href="http://www.webresourcesdepot.com/7-free-disposable-chat-systems-for-instant-communication/" rel="nofollow">http://www.webresourcesdepot.com/7-free-disposable-chat-syst...</a> Also see <a href="https://www.spamgourmet.com" rel="nofollow">https://www.spamgourmet.com</a>