No issues here that concern WOT. Some may disagree with the content, but the site itself is perfectly safe. Those who would give the site a poor rating obviously believe that reading opposing viewpoints is dangerous. I on the other hand, seek out viewpoints that differ with mine.
As a consequence of belonging to a religious sect which actively rejects logical thinking and secular education, some users do not understand the purpose of this site is to rate websites for safety related to viruses, spam, malware, appropriateness for minor, etc. It is not for rating your offense because someone legitimately disagrees with your religious/spiritual choices.
This site is a legitimate Christian apologetics ministry, aimed to equip Christians and others to understand the beliefs of the Jehovah's Witnesses (Watchtower Bible and Tract Society) and how it differs from historical orthodox Christianity.
It has been unfairly targetted by Jehovah's Witness apologists, and rated poorly based on their doctrine that they should not read anything that is not written by the Watchtower.