Servers are NOT allowed to:

Send malicious files (.exe .cmd .jar .vbs .bat .com .dll) to players.

Make players automatically connect to another server (auto-connect).

Automatically redirect players to another server (redirect, /server or any other command).

Change the player's game menu (GameMenu: New Game, Find Servers, Options, Quit, etc.).

Change the player's nickname (to an IP, a server name, etc.).

Change the player's settings (config.cfg, userconfig.cfg, autoexec.cfg).

Change the player's master server.

Breaking these rules gets the server removed from the boost. In that case the payment is not refunded.