Gerrit,
Extending your bad email address idea, I'd like to see the system log the bad usernames and email addresses and have a screen that will show them. This would allow people who sign up to see that their request failed and why. Perhaps they can then select themselves from the list, edit their email address and try again.
One of the biggest wastes of time is when people email me saying that they never recieved their login details.
Simon Wolf,
Webmaster,
Access All Areas
http://www.athree.com
