Had someone offering to place a link on their site for a monthly fee, claiming their site is PR8 - I checked the PR and it seems to be real, with no 301 redirect, but by looking at the site and their presence in google results, I highly doubt their PR is legitimate, but cannot find out how they faked it, and whether having a link on their site will have a negative effect on my site.

Their domain is articledomination(dot)info

Can anyone shed some lights into this ?