Yes I did - So current setup determines that you have to "create" the post as "admin" for the full html tags to be stored - editing an existing post in not enough.
From memory the reason for NOT allowing full html tags is that users could post script that it exposes vulnerabilities in the browser which can be exploited through Javascript
I wonder if it's possible to add "Custom BBcode" - this would then allow people to use the embed video <iframe> safely...
C-3PO