How do you use strikethrough text on Facebook?

On the old old Facebook it was possible to use HTML, like this:

<strike>strike it good</strike>

The new Facebook doesn't allow this. Probably for security and privacy reasons.

What the new Facebook does that the old one doesn't is "UTF-8". Which means even though you're using English, you can also use foreign letters in an artistic fashion.

Thus these will work perfectly if cut and pasted into FB:

* ¡uʍop ǝpısdn ɯ,ı 'ʎǝɥ * I̶'̶m̶ ̶t̶o̶t̶a̶l̶l̶y̶ ̶n̶o̶t̶ ̶w̶r̶i̶t̶i̶n̶g̶ ̶t̶h̶i̶s̶

For strike-through, you need to use a specific "combining diacritical mark" called a "combining long stroke overlay". Instead of showing a letter, it goes back to the last letter and does something special to it.

You can dig for this letter in a Character Map program(Windows users will find this in their Start -> Programs -> Accessories [-> System Tools] folder). Depending on your system, they'll be called "modifier" letters, or "combining" letters. Either way, those go right on top, so pick one out and paste it in.

It is really tedious, but it works.

There is also a website that generates the modifier letters for you:

http://adamvarga.com/strike/

And another, which even allows multiple types of strikethroughs: http://manytools.org/facebook-twitter/strikethrough-text/

Also a tool which does upside down text: http://manytools.org/facebook-twitter/type-upside-down/