The only solution to this RS gold problem is to force players to give back to the game, eradicating the existence of circulating coins. I'm not a great expert on this Araxxor issue, but I believe a step towards the right direction is offering incentives to players to use their money in a manner that it doesn't be given to another player.
Being an inactive participant, it is not possible to provide reasonable methods to accomplish this. There are a variety of methods to OSRS buy gold dispose of the money that has been laying around for years like shops, sawmills, and so forth. They managed to sustain inflation between 2001 and 2009.