@apophis Filing DMCA claims works just fine provided the copyright holder files them, although DMCA's are designed to be mostly business exclusive, as to file them you need to pretty much dox yourself, which is fine for a business with a publicly listed address anyway, but is bad for an individual.

It could be argued that the GPLv2 and GPLv3 gives the user the permission to file DMCA claims on behalf of the developer, although businesses are likely to ignore such filings.