BBCode in HTML
 

I allowed HTML in one certain forum for my board in order to get a certain type of formatting, now I'm unable to input any BBCode such as profile information into any of the posts. Is it possible to inject BBcode if the HTML is turned on? Or, how can I escape HTML and be allowed to enter BBCode.

Edit: I turned HTML back off and am still unable to add profile fields in the posts. I realize that the posts are compiled differently, so I am assuming that this is not possible?