Can I use images?

I'd like to spice my giveaways with some fancy image headers (and definitely not backgrounds, since that does not work with markdown).

For example (a placeholder):
(Except it doesn't work.)

Just a note for a users:
The proper way to make an image in markdown is to put an exclamation mark before a link.
The [] serves as the hover-over text, and the () serves as the image link.

![Alt-text](Image Link)  
![Placeholder 350x150](http://placehold.it/350x150)

Is there any reason as to why images were disabled?

View attached image.