[Valg]

And thank you for that. It's akin to the food debate where the FDA's job isn't to stop you from buying anything, but rather to make sure that the contents of a food package are labeled in a way that the consumer can understand.

The slippery slope argument presented by others is a logical fallacy-- while we could make 4000 options, there's obviously a point where rigor gets sacrificed for user-friendliness and transparency. We want a system that any visitor can understand.

Exactly. Each MUD is already labeled in a couple dozen ways, some of which seem very trivial to me. Each MUD is also labeled by their response to "Pay to play Mud?". Moving that from a binary option to something mildly more descriptive (4 boxes plus optional text) makes the web site's Search function much more useful, on a category that everyone agrees is important. It would presumably be optional-- the default would be that all searches wouldn't care about a payment model, but you're welcome to specify one if that's important to you.