Runescape Doubling scam

A lot of players have been falling for a scam that became very popular when the trade limit has been removed. The doubling scam involves a player claiming that they can double money. They ask for players to give them money so that they could 'double' it for you. Although this is in fact a scam and doubling money is impossible on runescape. Although some money doubling scammers offer a test to players in order to gain their trust by actually doubling small amounts of gold using their own gold which eventually leads to the player giving larger amounts of gold. This can be used against the scammers however. Because players can choose to do the test for 5-10k gold, get it doubled and then just move on to the next scammer and do the same thing again. Therefore this scam can not only make you money but also lose you money. I have seen a lot of scams before and this one is by far the most costly if it goes wrong.