There certainly is a lot of speedhackers out there running league mates and friends through things for free. Not all of them are out there charging for the service. But your point still stands. Personally, the feats, while still an issue, is the least of the problem imo. It is the speedhackers that run certain missions and bounties collecting all the rare drops. They may not be the only reason, but are a big part of the reason why the economy will never be fixed in this game.