the dmca takedown services are awful. They just do exact text match on titles of videos and submit dmca requests on behalf of the content owner. If you embed a video widget from the content owners official YouTube page on your blog for example and quote the title, often these services will still send a dmca request.
Even if you respond and say the complaint is invalid some services will still ban you for receiving too many requests.
Source: built a crappy content farm with video embeds. Received avalanche of requests.
It’s hard to cry about my case in particular since it was just a dumb content farm. But ops post is another example of this terrible software and legal process having wider implications.