You’ve all heard there’s no such thing as bad publicity. On the internet this is doubly true. When you link to a website — regardless of the reason — this strengthens its position in search engines. This means that a bad review of a website makes it more popular.
When you are discussing or alerting others to a website that promotes a fraud, scam, cult or other questionable business and you link to that site, search engines will (after a while) improve the offending site’s rank.
With donotlink.com, you can link to sites without giving them “Google juice”. Donotlink.com uses three different ways to block search engines from crawling a link. So you can post it on forums, message boards, reddit and other public places without giving shady websites any undue credibility.