I often find myself wanting to pirate when watching an official stream that just plain sucks. The worst is when I am forced to watch ads when I start and scrub, then the video fails for some reason shortly after starting (and watching the ad). I refresh the page, watch the ad, scrub to where I was watching, watch another ad, then it fails again a few more minutes in. Finding the pirated copy might be a PITA, but I at least will have a file on disk that I can do whatever I want with and there's no question whether I'll be able to watch all the way through.