KenB - 10:16 pm on Feb 17, 2010 (gmt 0)
I've had archive.org banned for maybe ten years or longer. Most spammers may ban them, but so do a LOT of legitimate sites. They are no different than scrapper sites as far as I'm concerned. They violate the robots.txt file and if I did allow them in they'd provide no benefit to me in exchange for consuming vast quantities of my server resources.