Just add "http://tech-forums.us.intellitxt.com*" to your filters list and you will never it on this forum again. Or add "http://*.us.intellitxt.com*" to never see them on any site.
FF isnt the only browser with a ability to block ad's.
I'm using opera and simpily adding "http://tech-forums.us.intellitxt.com*" to the filter.ini file blocks them.
No ads for me