I don't think you can neg rep anymore. You need to get one of those light green bars before you can rep anybody anyway.
Oh, thanks for the great replies guys. I just started a second job so I will probably have enough money to donate soon!
members who donate are not considered VIP the oldschool members are like the illuminati.... i dont trust them
People that have been on here since the wheel was invented are able to neg mod. I donated, and I can't neg mod. That's not the reason I donated, though.
As others said, only forum guides/mods/admins and VIP members have the ability to -rep. You cannot purchase -rep abilities. You just have to prove for a few years that you are a member worthy of having such responsibilities and hope that you get to be VIP.