As with the unibomber, sane people will find it the work of a fevered mind. Certainly Kaczynski was off his beam, but there is much in his manifesto that would not look out of place on FR, particularly in regards to his observations on the psychology of modern leftism, feminism, homosexuals, etc. Just one example:
Leftists tend to hate anything that has an image of being strong, good and successful. They hate America, they hate Western civilization, they hate white males, they hate rationality. The reasons that leftists give for hating the West, etc. clearly do not correspond with their real motives. They SAY they hate the West because it is warlike, imperialistic, sexist, ethnocentric and so forth, but where these same faults appear in socialist countries or in primitive cultures, the leftist finds excuses for them, or at best he GRUDGINGLY admits that they exist; whereas he ENTHUSIASTICALLY points out (and often greatly exaggerates) these faults where they appear in Western civilization. Thus it is clear that these faults are not the leftist's real motive for hating America and the West. He hates America and the West because they are strong and successful.
Gotta admit he’s got a point there. But most of the Unibomber’s manifesto was from a leftist perspective, wasn’t it?
Along these same lines, more than a few liberals found Timothy McVeigh sympathetic after reading his writings in which he characterized the United States as an imperialistic bully. Towards the end, McVeigh was writing letters to arch leftist Gore Vidal asking him to take his case to the public.