DMCA claims are made under oath. So yes, your rogue bot technically opens you to lawsuits for perjury. The problem is, nobody being falsely accused of copyright infringement opened such a lawsuit yet.
Posted Sep 10, 2012 0:52 UTC (Mon) by Fowl (subscriber, #65667)
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The problem is that these bots aren't making DCMA claims, theyr're just participating in an entirely voluntary process invented by the provider.
Obviously there is coercion/pressure being placed on providers by rights-holders to implement these systems, although I would have thought the providers would be very wary about waiving their safe harbour protections by interfering in this way.