I'm with Oz on this. Just imagine what yeezevee's posts will look like if he was allowed to use different colours and fonts etc.
![Vamoose](https://www.councilofexmuslims.com/Smileys/custom/doh30.gif)
Many sites don't even allow emoticons. e.g. richarddawkins.net, facebook, atheistnexus, etc.
..and if there's a security issue with allowing html code, then it must be a no.
![Angry](https://www.councilofexmuslims.com/Smileys/custom/angry.gif)