Just as a general reminder - Namco Bandai uses contentID matching (So no monetarisation on im@s videos, but were you expecting to make an empire from someone else's work?) and generally can be noted, but aren't usually a cause for alarm. A contentID is an option by a content creator to say 'Well, we'll take the advertising revenue, but you can keep the video up'.
Copyright strikes matter significantly more, as they revolve around takedowns, law, and sometimes court.