I'm happy enough to be a volunteer. Being paid wouldn't help and would likely do more harm than good. They couldn't pay enough to make it worth being a part-time job (never mind the legal hassles that would need to be addressed writing a paycheck to people living all over the world) and the idea of having a regular or irregular shift when I would be "on duty" is cringeworthy. Finding people is apparently a problem but paying people anything I have to believe would make it worse and more of a revolving door.
The bigger problem from my experience is the burden that hiring a moderation staff would put on MMO-C. It's a significant thing when you start to talk about taxes and stuff. I can't imagine starting a 1099 (self-employed company) to contract with MMO-C for that. That's what would need to happen though. It's just crazy.