The question seems to come up alot weather or not a user is trusted here on D3scene, i think having some sort of title (like the coder, elder user, donator, etc) or official list would help people who are looking for a trusted user who can provide services find someone without having to start whole new threads asking about it. The way users would obtain this status is kinda open i suppose since there are many different ways. I personally think anything with time on the site would be a bad idea since there are so many people who have accounts here since like 2009 but with fewer than 50 posts.
I know we have a section for premium members. But sometimes new users come around looking for some help and they wont find any unless they stick around for 350 rep.