Comments and rating seem to be reporting on different sites. kqzyfj.com is a redirector for sites using Commission Junction, a VERY reputable site. Don't mark them down just because spammers are using them. Report the target site to cj.com.
Providing information that is personal to this site you are risking the possibility of being spammed, infected by malware, or infected by viral programs that can cause negative things to happen to your system.
Unfortunately, the site is often used by legitimate sites (eg. pricebat.ca, redflagdeals.com, cpubenchmark.net's CPU price comparison links) for referral link redirects that lead to other reputable sites. Blocking this site in the hosts file will result in these links not working at all.
They sell cell phones designed for old people -- big, easy-to-read buttons, has a dial tone when you flip it open, you can ask the operator to dial your kid or grandkid for you. There's nothing malicious about this site. I don't know where the comments came from about this. Perhaps they're legacy from before "Jitterbug" phone bought the domain name to sell its Jitterbug phone and "Great Call" service.