The question I have for you is, Why do you want to know the reps of a user's nodes? If you don't particularly want to, then Super Search gives you everything you need.

I don't see any request to know/see the rep of any nodes .. what i see is someone pointing out that the UI for Super Search is complex (and rightly so since it is a "Super" search interface) while the UI for node#6364 is clean and perfectly suited for the usecase described ... except that it can't restrict by nodetype.

If the solution is to replace links to node#6364 with links to Super Search where the username is pre-filled and all of the other options preselected then that works to ... but there is something to be said for simple interfaces for simple use cases.