raing3, I'd be careful not to overstep your bounds, lest you find your position replaced by somebody that's actually willing to update the official database location (because without it cheatup is useless and new users are lost), and if they don't know as much as you... oh well. There's no unions here, if you go on full strike you'll be replaced by somebody willing to do the job (as you may have seen with the DS section getting a revamp, removing the people that stopped doing it and adding new people because they were willing to).
I've looked at your guides and saved a tool or two for future use, but I simply don't have the time (and bandwidth!) to test all sorts of codes on all sorts of games. I don't have an extra memory stick to hold games, and with a max download speed of ~75KB it'd take me ages to test just a few games I don't currently have.
This is probably the case for a few other GBATemp users that know enough to start, but just can't. More common is the people that don't know anything about programming or computers. They just want to use the codes. The average forum goer doesn't even know what hexadecimal is, they can't be expected to make codes (and I wouldn't trust the codes they do cobble together!)
You currently have the job because you can do it.
Most people can't. That's why the situation is as it is.
The DS forum has it easier since DS emulators work fairly well on common hardware so creating codes and debugging is possible for many more people and is almost streamlined, but that's not true for the PSP. Using an emulator to develop or test codes isn't trustable, and having to transfer stuff back and forth between the PC and an actual PSP over and over is going to drive the average person crazy.
Nobody's contributing because the majority of people can't, and holding cheat updates for ransom is going to get you more ire than cheats.
EDIT: To give an example, I made the PS3 jailbreak FAQ that got stickied... but I've never even touched a PS3. So why was I the one to make the guide? It needed to be done and nobody else was doing it, so I did it even though I may not be the best qualified (and I often need to ask people to test something for me).