> their desire to suppress the use of their copyrighted IP in critiques of their product
Which is a textbook case of fair use. They may want to do that, but legally, they almost certainly can't.
Which is a textbook case of fair use. They may want to do that, but legally, they almost certainly can't.
Ultimately, whether something is fair use or not is the purview of the courts. Does the DMCA require you to make that judgement before submitting a notice? I would guess not.
And unfortunately, you can't sue people just for being jerks.