Same. I've been using youtube almost daily both on firefox (with ublock) and android (revanced) and haven't seen any notification to turn off adblocker.
I use that everytime I go to uninstall something. You can configure it to scan your system registry and local files for residual files that the software's uninstaller won't remove.
For the most part, yeah. The only way to avoid getting into matches with bots is to find community servers with active moderation. I queue into Uncle Dane's servers when I feel like booting up TF2.
Same. I've been using youtube almost daily both on firefox (with ublock) and android (revanced) and haven't seen any notification to turn off adblocker.