You can use another approach if you have knowledge of CSS and don't mind changing the way things work for all users of your forum. For example you can change the appearance of any content tagged as Bold, Italic or any of the headings H2-H6 and this happens without needing to check the "Message is in HTML Format" box.
For example, if you (or your users) never use the "B" button to make text bold, you can use CSS to make it appear red instead like this:
Go to: Options > Application > Change appearance
and add this code to the the CSS box.
div.root-text b, div.message-text b {
font-weight: normal;
color:red;
}
I have a page at:
http://greghelp.991552.n3.nabble.com/Using-CSS-to-Change-the-Formating-of-Headings-tp4012765.htmlwhich shows some more dramatic changes you can make to the way various headings can be made to appear.
Volunteer Helper - but recommending that users move off the platform!
Once the admin for GregHelp now deleted.