Oh, sorry I wasn't clear.
I'd like to do the equivalent of strikethrough text. For example, if I have this:
Hi. My name is Fred.
But I'd like to "strike" Fred and replace it with "John" showing the original text ("Fred") in a strike-through font. In HTML, I could do something like
Hi. My name is <strike>Fred</strike> John.
"Fred" would have a horizontal line through its characters (like I took a pencil and struck it out). But these HTML elements are stripped. And the [s] and [strike] bbCode elements don't seem to be supported.
I'm wondering if there's another way to use a strike-through font?