Disqus employees have pet community members that they protect. These community members can do whatever they want without being held accountable for their words and actions.
Originally it was only 4 community members that were allowed to terrorize other Disqus community members, but  that number has grown as their behavior has gone unchecked by Saeed Oday. This group brags about communicating with one another to orchestrate these attacks on community members. They threaten anyone who stands up to them. They know they can do this because Saeed Oday will protect them.
Community members can stop using Disqus or limit their access to a few Disqus channels where they are not attacked by gmartini, leslie.lanister, SamJ and Coccyx or their followers. Why should community members be forced to do either in order to avoid this pack of bullies?
Disqus has been saying they are working on a block option for years now. If a software company that was established in 2007 can not implement a simple block feature on their comment hosting service then they need to hire new programmers and code writers or find a new business.