So... Do you have any eggs?

[EinsteinsHund]

See this sticky thread in “Site Feedback”. It’s all laid out there:

How to avoid the YouTube posting bug

You’re trying to post a YouTube video, but you get a popup saying “You can’t embed media items in a post.” Here’s how to avoid that. There are a couple of minor variations. I haven’t written my post yet Write your post normally but do not include the YouTube link(s). When you are satisfied with the post, hide the preview window (see the << button in the lower-right). Then, insert the links in the desired locations. Note that the links should each appear on a line by themselves. Then post. …