A user had said that firstly, he wishes to be able to embed stuff on mobile devices, but even on the desktop version iFrame embed won't show the video once he clicks "Post", only during edit you can see the first time. The embed code he sent me was. It will not display: http://technasium.userecho.com/topic/200104-what-do-you-think-of-this-hypnosis-headphones-suggested/ on mobile or desktop version.
Seems that youtube embedding iframe was changed slightly and we cut it for the security security purposes. Will apply fix soon. And video will be displayed.
Thank you. The problem found and fixed.