Something has to change with it however, there's been a sheer drop off in the amount of trades MM's are actually being offered yet there's still the same amount of people trying to MM. A large decline in supply but the demand has remained static. I know personally I don't even bother to bump my MMing thread because MMing in the first place is such a chore, you are literally giving up your free time to help some unknowns conduct a trade when, generally speaking, they're either idiots or rude or slow to respond etc. For me trying to gain OMM is the only thing that would make it worth while and many others have voiced similar opinions in this thread however in my brief time trying to MM again after having already been through the rigorous process once, I've accepted that with the current standards it isn't going to happen. Technically speaking it should be easier for me to get high trades now that I am a moderator as opposed to being a regular member the first time but it just isn't the case. You can't alter the supply of trades for people to MM, you can't force new users into the market, You can't control the GP conversion rates etc but you can control the requirements for the apps.
The way the system is now is discouraging. The requirements are so steep ($550 being 1650m RSGP). That just doesn't happen outside of large gold sellers nowadays. I've heard many talk about giving money to a trusted friend and having them do the transaction using themselves as the middleman in an effort to complete this gigantic trade. At the end of the day middlemanning for a close IRL friend is pretty different to MMing for a complete stranger, there's actually consequences for you in the real world if you scam which you have to think about meaning that this trade isn't really indicative of much at all. I wonder how many have actually gone through with this, an impossible thing to prove however but I disgress. The thing I think you're forgetting is that completing an app isn't the end all decision to whether a user will receive the coveted rank however. You can always deny them a numerous amounts of times if you do not deem them trusted. Something has to budge.