I have a couple of questions for you knowledgeable webmasters.
1. If I owned a forum that got overrun with spam, ignored it for 2 years to the point it had 1,000,000+ posts.
I then delete the DB and redirect to my main site.
At this point I notice that the site has a lot of pharma backlinks from 1000's or domains (now all point to my main site).
2. I purchase a website rather cheap and soon find out that it is linked to by an Alexa 100,000 website. This site has placed a link on over 100,000 pages (the home page) - The purchased site is pointed to my main site.