youtube.com##+js(set, yt.config_.openPopupConfig.supportedPopups.adBlockMessageViewModel, false)

youtube.com##+js(set, Object.prototype.adBlocksFound, 0)

youtube.com##+js(set, ytplayer.config.args.raw_player_response.adPlacements, [])

youtube.com##+js(set, Object.prototype.hasAllowedInstreamAd, true)
@vantablack I always visit youtube in a temporary container without logging in and without any persistent cookie storage; did I accidentally defeat their ad-block-blocker before they even turned it on? I wondered why I haven't been seeing this