Starbuck told me that selling resources at 0.10 to yourself is not considered cheating, so you can just take 1 friend make each 4 extra accounts, let your friend babysit your secundary accounts to produce resources and sell them to your main account for 0.10
you can also store resources from your secundary account in a trade post, there is no point limit so you can just attack it to take free resources,
trust me it's bullet proof, if someone reports you heshe will only recieve a mail with "there is nothing to see to punish the listed player", have fun with it, and remember the more accounts you have the stronger you get no diamonds can beat that.
EDIT Starbuck : before using the name of other players improperly, you should make sure that every one of their words is correctly added
I said, that so long as the rules of the game are respected, it's TECHNICALLY possible to sell ressources at 0.1 gold without cheating
no ressources can be sold at less than half or more than double of the current asking price, but if you put several offers to drive down the prices, then 0.1 gold offers become possible
multiple accounts are cheating
babysitting is not
storing ressources in trade post is not cheating
you cannot attack a target of a player whose IP is the same as yours (babysat account)
