Calling the sites referrer spam and ghost spam is correct. It's spam, which is illegal in some countries, and visitors did NOT come from Semalt.com to your webs

Calling the sites referrer spam and ghost spam is correct. It's spam, which is illegal in some countries, and visitors did NOT come from Semalt.com to your website. It's fake, and I'd continue to call it what it is: referral spam and ghost spam. Some even tracked down the Semalt botnet that was doing this referral spam and ghost spam. So you're absolutely in the right by calling it what it is. What semalt did was absolutely referral spam. They claim it wasn't them, but they certainly profited from it.