Thanks for the response guys. I'll stick with it, I was just frustrated.
The main problem I'm having is 10-15 spam accounts registered per day. I have a CAPTCHA in place so they must be using real people, rather than bots, to register the accounts. Thus I have to look at each username and email address and guess which ones are spam. Usually googling the email addresses brings up spam user databases, so it's not actually that hard. It's just persistent and annoying.
A secondary problem is that these 10-15 registration emails per day steal my attention away from more important things, like work, writing on the blog and posting here. So I tried changing the email address where these notifications are sent, so I could more easily ignore them and do it on a weekly basis rather than intermittently. I must have broken something, as now I'm not receiving these notifications anywhere. Problem solved, kind of, but it might be nice to allow legitimate users to register eventually.
So Matt, I appreciate the offer and may follow up with you shortly, but first I'll have to fix the account moderation.
This would be so much easier if Corel made a forum