WOuld be a nightmare to implement in practicve though in theory a great idea = please note everyone can always use the reputation system to add/remove points froma given user if it is thought they are dispensing bad advice, getting too flirtsy, acting like a spaz, using incomprehensible "interweb grammerz" etc. The labels for those ("xx is welcome around here" etc could be adapted fairly easily to something a little less generic and more herp oriented. It is there just not employed very often (same with the thread rating tools - feel free to rate posts/threads).

Just a logistical $.02