I've written many words refuting Leninist lies about anarchism and our history. Of particular note are the stream of lies associated with the Kronstadt revolt and the Makhnovist movement. In summary, they simply repeat the old Bolshevik (and Stalinist) slanders against them. When they do provide non-Leninist references for their accusations it is soon discovered that said books rarely say what the Leninists claim they do (often they say the exact opposite!). The levels of intellectual dishonesty are truly amazing.
I had the misfortune to recently come across such lying for Leninism. The Revolutionary Communist Group asserted in their paper that the Makhnovists "joined with counter-revolutionary White and imperialist armies against socialist Russia. This band of brigands also carried out pogroms against Jewish communities in the Ukraine." (Fight Racism! Fight Imperialism!, no. 174) This was part of an extremely inaccurate diatribe against anarchism masked as a review of the excellent pamphlet "No War But The Class War! Libertarian Anti-Militarism Then and Now" produced by the Kate Sharpley Library.
No evidence for such a serious claim was presented in the original review article. When another anarchist pointed out their assertion was "falling back on a long tradition of Stalinist lies" and asked for "any historical references" to support it, the paper replied by stating that while there were "several" references, it would give two: "E.H. Carr refers to it in his history of the civil war. Also the anarchist historian Paul Avrich mentions it in his work The anarchists in the Russian Revolution." (no. 175).
In reality, neither work says any such thing. Looking at the first (unnamed) one, assuming it is E.H. Carr's The Bolshevik Revolution there is no reference to pogroms carried out by the Makhnovists (looking in the index for "Makhno"). Which, perhaps, explains why the paper refused to provide a book title and page number. As far as the second reference goes, Avrich made no such claim in The Anarchists in the Russian Revolution. He did address the issue in his Anarchist Portraits, concluding such charges are false.
Sadly, issue 176 failed to publish my letter pointing this out. And the name of the original review article? Ironically, it was entitled "The anarchist school of falsification"!
For those interested in the truth about the Makhnovists I can recommend a few good webpages. The best is "The Nestor Makhno Archive" (www.nestormakhno.info) which contains a length FAQ on the Makhnovists (which refutes their alleged anti-Semitism and other Leninist lies about them). This is a section from "An Anarchist FAQ" which has a lengthy section on Kronstadt as well -- see www.anarchistfaq.org. For specific replies to Marxist inventions about anarchism visit my webpage at struggle.ws/anarchism/writers/anarcho.html (which includes both letters the RCG did not print).