That's partially the idea behind the "Item Advisor" rank. Unfortunately, we only have XyNox at the moment with this rank. More importantly though, aside from just being "trustworthy, well-known, longstanding community member", they also need to have the appropriate mindset, as well as a significant amount of game mechanics knowledge beforehand. Their knowledge doesn't need to be perfect of course, but they need to know enough, to be able to ask the right questions and be able to test things properly(as well as the desire to do so). If not, then what exactly do they have to offer, that the average person couldn't?
Lately I've been interested in finding more Item Advisors to recommend, especially with me picking up the pseudo-Item Manager role, as well as the Event Management stuff. What we really need is more EU representation. (Un)fortunately I'm just not familiar enough with the EU playerbase to make and further recommendations than what I have already done.