Example: https://user-images.githubusercontent.com/28404851/139339574...
Leave any server I've not spoke in or read in a month. I'm in 8 servers currently and 4 of them are on the chopping block soon :)
You don't have to control anything. All the data is delivered to your browser in a form of push notifications. Read them programmatically, filter and send yourself an email.
I don't think this can fall to definition of a "discord bot" at all. It certainly doesn't violate anyones' ToS.
And yea I know client modifications haven't been allowed in years, although they haven't really cracked down on it much aside from completely separate third party clients.
Edit: Ok - RTFM (or rather Google Search ). There's no folder create per se but if you drag a channel over another and wait a second, it turns into a folder.