I can't stress enough how silly this conversation is. You obviously don't understand Alexa, grabbing random quotes off their site isn't going to help.
The archiver that is mentioned in that quote would prevent a graphical preview of your site, and that's about it. You can stop it with robots.txt if you want but it won't take your listing down.
Nor would you want to. They are not hijacking sites.
Simple as that.
If Alexa was really hijacking sites then there would be examples of it, it would be clear to see in Google. They aren't.
If anyone thinks that Alexa is hijacking their site then sticky me. I'm waiting for the evidence...
/me watches the tumbleweed getting blown across his stickymail inbox.