Userscripts.org

thanks muroph!
the delay is tiny now, and also when firefox 3.1 is released with the new javascript rendering capabilities I'm positive you wont even notice it.
I've also written a stylish style that should have no delay at all - so that's always an option!

And to Webb
the script does work, I just clicked the link you sent and with my script enabled, and with adblock plus enabled, I saw the text perfectly.
here's a screenshot.
The suggestion to bypass the anti adblock script on the second link you sent - will not work if the website you visit hosts the script themselves.
All the websites that use the script, that I have seen anyway, do host it themselves.
You will be forced to make another rule for every website that implements the script.
And I don't doubt that this script will start to pop up more and more, especially with smaller websites.

My script however, both the greasemonkey and stylish script, will work on every website that implements the script. So once you've installed one of my scripts - you'll never have to worry about it again!