YouTube videos can now be embedded into a message.
So instead of having to click the link to a YouTube video, it can be watched inside the message box which is much easier than navigating off the page.
However videos cannot be embedded by using the "embed code"
select a video from YouTube which you wish to post on the forum. Highlight the "url" and right click, copy;
Paste the url code into the message box on a new line;
Highlight the pasted "url" and click the "YouTube" Icon, Your link should now have [youtube] at the beginning and end of your URL link
And that's it!
Hit the preview button, The player should now be embedded into your post
Then hit the post button.