I'm sorry, but your security argument is terribly flawed. Any member of this forum could make an image script which gathers IPs and refferer URLs and correlate your IP back to you. They could use it in their signature or make it serve up a smilie or a blank GIF and use it in a post. If you're honestly worried about people obtaining your IP, telling us to change how we run things is the last thing you need to be thinking about.

Use a proxy or a path randomizer.