No, a bad idea is always bad, Game also explains why allowing gold currency trading won't happen and has downsides.
In addition to my cliches I explained to you why it wouldn't work.
The multiple suggestions I made would help fix separate parts of the same problem, and part of that post is explaining details about the issue Scorchz said.
Oh I thought we're talking about the value of high runes as it relates to trading and the server economy