Whether its Hal Lindsey, Jim Marrs, Alex Jones, David Icke or Jesse Ventura, they are all controversial depending upon one's POV. Like many people, Hal Lindsey has a particular set of beliefs especially, Biblical_Prophecy & his popularity continues to grow with each new year. Hal Lindsey has a strong connection with wnd.com . The Late,_Great Planet Earth became a Sleeper_hit.
Since there are several religions, not everyone has the same take on Eschatology or philosophy. Many people are agnostic or lean towards atheism or have a full irreligion perspective. Then there are those that strictly or loosely follow the Scientific method. Thus for many it can be tough to keep an open mind to various perspectives & aspects of reality. Researching patterns & symbolism, coincidence & synchronicity, doesn't have to be limited to any particular POV. Anyone can be interested in such things & still hold to their other personal beliefs.