You have a great idea.  However, such a program is probably unlikely.  I would suggest that you look at the number of posts that the person has, and also look to see if they are project team member, or core team member.  If you see one of those avatars, or 1000+ posts, I would certainly think of them as a "certified trusted" user.  They are obviously donating a great amount of time to the progression and support of DNN.  Keeping those attributes in mind, I am not sure there is a need for such a program.  It would almost be redundant.  ;)  That is just my silly opinion though.  My opinions normally do not count anywhere.  Hehehe...