A known (as yet unfixed) bug of the forum software that we're using is that it garbles the e-mail address into [yourusername]@foo.com which, unless you happen to be at foo.com is unlikely to be your real address.  

Our forum software has several configuration options for sending you notifications, but that can only work if your e-mail address is accurate.

Also, you can also input your twitter name and your profile page will show your most recent tweets.