Earlier quoted context omitted.
...YouTube isn't really to blame for all of this... In the case of ContentID, which bypasses the DMCA, yes, they are to blame, along with all the media companies that demanded its creation.
ContentID doesn't bypass DMCA. It is neither required to take advantage of the DMCA safe harbor with regard to suits by copyright owners not compliant with the DMCA safe harbor provisions for suits by users hosting media, but it doesn't bypass anything required by the DMCA. People sometimes confuse the things which trigger DMCA safe harbor provisions with mandates but they aren't, and the only reason to be guided by…
AFAIK ContentID claims mechanism merely mimics DMCA mechanism – ContentID infringement claims are not actually DMCA notices.
That means that false-positive ContentID claims basically carry no legal consequences, unlike false-positive DMCA claims (perjury).
That means you can throw automated infringement notices at users knowing that X% of them will be false positives. That wouldn't work with DMCA.