[2][4] At a party celebrating his 80th birthday, he came out of the closet as a gay man by giving a dramatic reading of the "Confessions" part of his autobiography.

";[13] his TV debate (Channel 13, Indianapolis, IN, The Dick Wolfsie Show) with John D. Morris on "The Question of Noah’s Flood";[14] and several radio debates (e.g., WTVN 610 AM, "Night Talk with Jim Bleikamp" in Columbus, OH) with Duane T. Gish on the question "Is Creationism Science?

"[15] He also had a famous debate with philosopher and theologian William Lane Craig at Willow Creek Community Church, South Barrington, IL on June 27, 1993.

[16] Zindler is also a proponent of the mythicist theory that no historical person lies behind the Gospel picture of Jesus of Nazareth.

[17] Zindler has authored, co-authored, translated, annotated, or edited several texts on atheism, science, religion, and many other subjects:[18]