Its erroneous to assume that trust is the same on all levels, i.e., just because Ron trusts you with the MMA subforum, he also trust you with the mod section.
There are different levels of trust. I may tell a friend a secret, but then tell a different friend a bigger secret, if I trust the latter friend more. Even in the government, there are different levels of clearance--some government officials know the TOP secrets, and some know minor secrets.
To be honest Shizzo, it makes sense why Ron would not trust you with the mod forum. Based on your past actions, you are not to be trusted in that regard. Be happy with your status as MMA mod, and perhaps sometime in the future, you can work your way up (if you choose to once again mod the MMA forum).