Interestingly enough, they (and helium.com, who have a vaguely similar business model) were soft-banned from Wikipedia back in August [1] --- IPs and new named

Interestingly enough, they (and helium.com, who have a vaguely similar business model) were soft-banned from Wikipedia back in August [1] --- IPs and new named accounts can't add links to them. [1] http://en.wikipedia.org/w/index.php?title=User:XLinkBot/RevertList&diff=prev&oldid=309943628 http://en.wikipedia.org/w/index.php?title=User:XLinkBot/Reve...