Sure. If you have cash to burn and a leg to stand on, you could call their bluff and file a civil suit for US$100,000+ and most likely win if they've filed a false DMCA. Many, many of these crackers DO file false DMCA claims, which is liable, and they can be forced to agree to a number of conditions in addition to the monetary settlement, such as a public apology, banning of the filing any future DMCA takedown requests, enrollment in a compulsory course on copyright law, and an entire host of other embarrassing penalties.