So you're refering to forum membership. Yep it can be a hassle. Happened to me at start of year. lol
Recheck again, it might be delayed before you receive it. By the way if you use maximum filters on your email then perhaps it's being blocked from being sent to you. The address is Gnutella Forums Mailer <forums@gnutelliums.com>
Actually I've just realised, the server for this site went down over a week ago & I suspect it's running on a backup system. Nobody has been receiving notifications from the forum about posts on the forum. Go to Site Feedback section of the forum & you'll see a thread about this issue. Feel free to add to it or create your own thread in that section to explain your scenario.