You mean how the DMCA grants US companies legal immunity for most copyright infringements if the content is posted by an "unrelated" user account instead of the

You mean how the DMCA grants US companies legal immunity for most copyright infringements if the content is posted by an "unrelated" user account instead of the official company account? FYI I work on catching image thieves in the US and we sadly see lots of cases where you feel that it should clearly be illegal that a company is using someone else's photo without permission, but oddly enough it turns out to be not legally pursuable.