incrediBILL - 1:08 am on Dec 25, 2012 (gmt 0)
Wayback is useful when we find someone who scraped our content say 2 years ago, and we have to show their webhost what our site looked like 2 years ago, and also that we had the content up first.
Wayback is also where the scrapers SCRAPE your site from two years ago! Letting them use your data is also letting the scrapers abuse that data so you're creating a problem that goes round and round and never ends. It's also where, if you're infringing anything, lawyers go to get proof of how long you've been doing it.= and much more. Overall, bad idea.
I keep my own site archives, I don't need them.
If you haven't read NOARCHIVE.NET, go there now and find out more.