User blog comment:Rappy 4187/Technical Update: June 18, 2013/@comment-452-20130619020813/@comment-1192804-20130619031032

Oh gosh, you're right, it's not adding that "px" at the end, causing lots of videos to be much larger than they're supposed to. That should be fixed ASAP. I can't believe that was overlooked.

(Then again, I have no idea why removing the YouTube tag was even necessary in the first place, but whatever. I personally didn't notice slow loading and don't care about tracking views.)