Here is an interesting quote taken from a book by Dr. Peter Jones:
It is Satan's sincerest wish that we should never make a negative judgment about those who set out to destroy the Church and its foundations, or who spread deadly heresy and false doctrine. Correspondingly, the real reason that human non-judgmentalism in any form is becoming so fashionable in this age is that it makes the concept of a judging, avenging God seem ridiculous, anachronistic and implausible.
- Alan Morrison, The Serpent, p.200. As cited in Peter Jones, Spirit Wars: Pagan Revival in Christian America (Mukilteo, WA, USA: WinePress Publishing, 1997), p. 74
Sounds familiar? This comes from a section in the book under the heading The Modern Heresy: Heresy-hunting.