By next week, we will have almost 500 servers, and we currently have just over 100 mods. Our moderators are active; every month, we do activity reports, and speak with the moderators who we feel are not doing enough work. The people that still don't do any work, or simply don't reply to us, get removed from the team.
The only way to solve this would be if we constantly had one moderator in every server. If each mod stayed in the server for two hours, we would have about 6000 moderators. Can you imagine how hard it would be to hire them (we would have to greatly lower our standards), make sure they're doing their job, along with ensuring they're not abusing the powers they've been trusted with? We would have to treat the servers as a business, and give people shifts. This is not a job, it is a volunteer position where you can help people out in your spare time.
If you see anybody breaking a rule in-game, you can contact a moderator on TeamSpeak, or gather the evidence and submit a report abuse.