the problem with saying "on x day i'm going to send an email with no links, you need to read it and email the address in there with your username from the email address you use" is that once word gets out, everyone will know on x day that email comes in. so they'll look for it, look for the address to mail to, and send the email
then the rest of the month they're either not reading or using cheating software. even the ones that can't understand english will be able to get around it, because they'll know which day that email comes out, and to look for it on that day.
even though there's a few holes in the idea, i'm gonna go ahead and say this as a program owner: thank you. the fact that you're taking the time to think about something to try and help out the industry is commendable. there might be a way to tweek the idea up and come up with something that will work. don't throw in the towel. keep thinking, keep trying, keep posting.
for now though, i think personally the tracking link, with a three strikes and you're out rule, is the best way to go. that way, if someone accidentally hits it, they can go "oops" and just be a little more careful, without actually loosing anything (no loss of earnings, no loss of points, account isn't auto deleted)
oh, and amy? about your comment here:
QUOTE
There are quite a few less than clever "cheaters" who are very well known to webmasters....in fact if they don't appear in your program you ask "am I not good enough" LOL
i would much prefer to be saying "i'm not worthy! i'm not worthy! i'm not worthy!"