To get rid of the annoying YouTube message (ad blocker are not allowed on Youtube) use this custom filter in uBlock extension
- Open uBlock extension dashboard
- Open my filters tab
- Copy & Paste this code into my filter
- Apply changes and close all tabs
via: enderman
The whole reason is to either make it so annoying that you switch to their paid service or get as many ad dollars into the shortest amount of time possible either way. This is just greed to squeeze as much out of the consumer before they break us.