Feature request: Limit a user account to only be allowed to stream "X" instances at a time.
Reason: I have 1 friend constantly trying to stream 2-3 things to devices in his house ruining my bandwidth for others!!
This would fall under the following feature request: [[Popular] Server Side Speed Limits/Caps for Shared/Subscribed Users](https://forums.plex.tv/topic/80857-popular-server-side-speed-limitscaps-for-sharedsubscribed-users/)
Early 2021 clean-up: duplicate / implemented
