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YouTube's next move might make it virtually impossible to block ads
(www.androidpolice.com)
This is a most excellent place for technology news and articles.
I don't login. Grayjay/NewPipe doesn't send any data to its servers, so they're not tracking viewed content. I also get subscriptions and playlists (again, w/o Youtube account) in addition to the features I mentioned. Afaik, you can't get any of that with addons.
How do they make money then? Nothing is free, and usually when it sounds too good, it is.
Grayjay sells licenses for the app ($10), which doesn't provide any benefits other than helping support the project.