[KaVir]

You can play for free, therefore "payment required to play" does not apply:

[ ] Payment required to play?
[X] Payment / Donations accepted, rewarded in-game.
[ ] Payment / Donations accepted, not rewarded in-game.
[ ] No Payment / Donations accepted, period.

A mud using such a payment system would probably want to elaborate in the text area as well, but that would be their choice. All a player needs to know is that it's possible to play for free, but that they can make payments for more goodies.

Fortunately it's very easy to prove that the IRE games can be played without payments or donations - therefore:

[ ] Payment required to play?
[X] Payment / Donations accepted, rewarded in-game.
[ ] Payment / Donations accepted, not rewarded in-game.
[ ] No Payment / Donations accepted, period.

The website is not within the game (assuming its a regular mud and not a website game), therefore:

[ ] Payment required to play?
[ ] Payment / Donations accepted, rewarded in-game.
[X] Payment / Donations accepted, not rewarded in-game.
[ ] No Payment / Donations accepted, period.

TEXT AREA: Donations are rewarded with a trophy graphic on the website

They get it in-game, therefore:

[ ] Payment required to play?
[X] Payment / Donations accepted, rewarded in-game.
[ ] Payment / Donations accepted, not rewarded in-game.
[ ] No Payment / Donations accepted, period.

TEXT AREA: In-game rewards are purely cosmetic

That's because they're both extreme borderline cases. Despite that, the four-option system is sufficiently clear that there's no difficulty deciding which category the above two examples fall into. This results in a system that's very simple to police, while also increasing the transparency for players - and with the text area as well, it allows muds to clarify their precise model and ensure that they aren't misrepresented.