*makes sure to click on correct nick to respond to*
Like I had said, even if it puts a damper on some of the file sharing, that is better than nothing. Say currently there are 1 milion ppl sharing illigal files (i knows it more, but nice round figure). Anyways, even if you stop just 10% of that (100,000) or even 5% (50,000) then isn't that enough to say "it was worth it"? Stopping all illegal file sharing will never happen, just as prohibition didn't stop alcohal, but creating an obstacle in the way wouldn't hurt.
Also with the "only registered versions have packetsize" You can just as well throw that out the window, ad not every version has that. Ppl will just resort to using 6.03 (and below) . I mean you don't need all the "neat features" to run a dccc bot i would think.