I did! Most of the arguments against basically boil down to 'make it harder for the average user to do this'. In addition to the unequal access to information, sites like lemvote demonstrate how easy it will be for the average user to bypass the imaginary technical barrier. Sure, you may block it now, but as the Threadiverse grows so will the number of sites and such that do so. Even a browser extension ala RES. Even without the whack-a-mole issue, it's only a matter of time before somebody sets up such an utility for public access with an obfuscated instance that can't be easily blocked.