As for why I refuse to embed Flash, let me put it this way. I use and highly recommend ClickToFlash, which blocks all Flash content by default. Why would I publish content using a technology that I personally block by default? I truly hope to see Flash fade as the de facto standard for embedded web video, and I’m willing to put my markup where my mouth is.
I am an avid ClickToFlash user as well and until recently thought the internet was for
pr0n text. It would be nice to be able to embed H.264 videos from Youtube.