fabianhjr wrote:thetan, why don't you simply generate some random passwords and create password protected forums? The password is given upon completition of the challenge. That is an easy to implement fix and could be changed later on. Maybe allow the completition page to have a link to the forums and automatically submit the forum password?
BTW, I suggest a split since thetan's post to the comments and suggestions forum. This had felt offtopic.
Add a row for each thread to the users table and generate a password based on the users password and or username for each forum so that it cannot be leaked and is unique to each user. Problem solved