[kh99]

I think what you'd want to do is something like add a column to the user table and use it to save the threadid of the reputation thread when it's created, then use that value to create a link in the postbit. Or you might be able to use a profile field instead. In either case you could write a short piece of code that would run once to set the field for existing users by doing queries on the thread table as you suggested.