The developers of the forums only get paid through valid licenses. When they get paid, you get better support. By letting them know you're a paying customer, you're asked to enter your license information in your profile. Piracy can destroy excellent companies and products(as was part of the problem with Looking Glass Studios *sniff*

), and there's nothing wrong with having them combat piracy as well as they can.
I understand how admins may not trust co-admins with the license information, and there's no reason they should have to give it out. The co-admins can give the main admin their login/password on these forums, and have the admin enter the license information. If the co-admins don't feel comfortable giving out their password, that's what the change password part of the User CP can be used for. Change it, have the license information entered, and change it back.
I think everyone agrees this isn't a perfect system, but for now it will have to do, and as a paying customer I think you should agree this will make things better for everyone(everyone law abiding that is

). Piracy will be cut down on, prices will drop(we wish

), and you'll get better support, to name a few of the benefits.