[Long Term] New Channel Types

I know my previous request for ethereal channels (create on join, remove when empty with channel settings in control of the person who it was created under) was closed do to the fact it can be achieved with bots. But I do think its a useful enough feature to warrant considerations for native implementations. I'd prefer not to use a bot for something like that if possible, I think not requiring a bot to achieve this would be a good feature draw to the platform.