I'm new to the forum, but thanks for posting this. I posted a link to the article on MyJeepRocks.com.
I often use brake cleaner when I'm welding--really handy stuff. Once or twice recently, tho, something hit my nose that was pretty wicked. Pretty sure I was MIG welding at the time. Now that I have a better idea of the dangers, I'm going to be a lot more careful with that stuff!