When reading the forums, it's nice to have the images below a person's name which indicate all the challenge categories he's mastered. These images have the alt attribute set, which Internet Explorer presents as a tooltip. However, not all browsers present it as a tooltip — for example, Mozilla doesn't.

The HTML specification suggests using the title attribute for tooltips. I've checked, and IE and Mozilla both present title as a tooltip. In IE's case, title overrides alt for the tooltip.

Is there any chance that we could switch to using title? I will finally be able to tell what categories the forum-goers have mastered.