by Vorfidus » Sun Sep 13, 2015 8:44 pm
Trading gold this way is allowed, as it is for nothing outside of the game. However, it would not really be covered under the 'scam' policy, seeing as the deal itself is being reached outside of the game (ex. forums). Whereas a trade or whatever can be tracked by server logs, things initiated outside of the game cannot be enforced. So, it's legal, you just risk getting scammed out of 5g with no repercussions for the scammer.
The level of whining about bans on the forums is at an all time industrial level.