I am not saying you’re one of those black hat webmasters who have reached PR6 due to heavy link spamming building and stuff.
However, and in case you have a friend that fits that category && in case he is trying to push sale the domain name he used to an moron investor, here’s some nice tip I learned recently it works:
The sooner the better, add a line to your robots.txt file to block archive.org bot.
No archive, no take-me-back machine, no domain name criminal record! 
Ohh.. That’s low lol
You are really evil. And I am liking it! Keep up the good work! I just happen to have “a friend” that enjoys this advice…