I have also noticed that Admins can post with HTML in the post but regular users can not.
They do not even get options in the pull down, heck, they do not even get the pulldown.
I have set up a second forum just to make sure I had not modified something and forgot I did it.
http://www.boggsat.com/ot/ Username: admin
Password: admin
Username: testuser
password: testuser
This is not a live forum.