I've recently found out about a minigame friends chat that uses a bot to collect information about the minigame. (I will not name and shame.) Players can use commands to interact with the bot and get the information messaged to them.
Is this against the rules? Is it a grey area? Or is Jagex just looking the other way for the sake of the community? The friends chat seemed to have player moderators as part of the team, so it's not like they're unaware.