Actually, the problem is rather specific to a site the size of DNN.com. In other sites with far less users it works just fine as demonstrated here: http://www.dnnforums.com/Resources/Fo.... The control actually being used here is the Client API's Text Suggest control but eventually I will replace it with something else (even on smaller sites this is a usability issue). This will allow me to write a better population method and use that rocket science degree I have. 

If you go to the link in my example, and type just "C", you will see my host account and my admin account on that site. If you select from the text suggest, you will see it applies something like: Chris Paterra [4]; to the text box. If you click submit, you will see it applies the filter. What is happening here is user's aren't getting populated names back timely/properly (because of the size) which in turn means you are not selecting a user and thus all the posts are returned (to an upper limit) which have no relation to your user because it was never selected.