A police force is a bit melodramatic. We're not showing up at their houses unannounced and shooting their dog before hauling them off to rot in a cage. We're voting plagiarized content down.
It's simple... if people spam stolen content and get upvoted, that encourages the behavior and reduces the rewards for the content that this network will need in order to provide real value.
Besides, tinfoilfedora , to jump on the bandwagon and compare this to the MPAA which is a part of the establishment and rips off the artists in favor of the recording companies, movie production companies and any other medium you can, is nowhere near an apple to apples comparison. The incentive should be to get good content on steemit ofwhichh the CREATOR is appropriately compensated by the viewers and not some stingy algorithmic process which puts most of the money the hosts pocket (google-youtube) There is plagiarism and there is borrowing and giving credit where credit is due.