Just because someone is doing their job doesn't mean you can't thank them. It would be a pretty miserable world if no one ever got thanks or recognition for doing what they are paid to do. Do you never thank waitresses when they bring you your order or people who help you in a store or the customer service people who are able to answer your questions? It's not only good manners but it is part of what makes jobs rewarding. And since the mods do not get paid for what they do, it is doubly important to thank them when they do a good job. Thank you, V, and all the other mods for all the work you do.