Edited sentence: (These terms are part of the vocabulary of Spiral Dynamics.His use of histrionics, ad hominem attacks, hyperbole, and polemic (which he has used before, for example, in the endnotes of Sex, Ecology, Spirituality) is a calculated move, in Wilber's view, used to address arguments which Wilber perceives to be fundamentally misdirected or reductionistic.In the first, dated the June 8th 2006, he compared himself to Wyatt Earp, launched an emotional diatribe against unnamed critics, and concluded with an ad hominem attack against Frank Visser.This blog post was followed by another in which Wilber announced that the reason for the original outburst was to separate the "upper tier" of his supporters from the "lower tier" or "green meme" of those who criticise his work.This was illustrated in two of Wilber's recent blog posts.Visser hosts Integral World, a website which contains a number of essays which are critical of Wilber's work.Wilber's attitude to critics of his work is perceived by some to be one of antagonism and hyperbole.Wilber's own rationale for such "outbursts", which he identifies as occurring roughly once every decade, is as a "second-tier" response to critics, whose arguments he claims to have addressed in many of his publications