User blog comment:Rappy 4187/Technical Update: June 18, 2013/@comment-452-20130619020813/@comment-1158325-20130619021107

It also isn't adding "px" on the video sizes...which causes problems. You guys, uh, might want to fix that. Guess I'll send in a ticket. Not to mention it made an edit to the page once for every video, which is annoying for pages with lots of videos.

Plus what 452 said; most users have been confused throughout this process despite efforts to inform them.