This is basically the solution. Just give a few words to explain that different servers can have some rules differences and offer the easy join button.

Get people onboarded fast and easy! If they want to, they can learn more afterwards.

Sinfest was the bee’s knees. I still have 2 of the first printed comic books, treasure them and the memory of fun times with early sinfest. But it should have ended many years ago already, author ruined his legacy.