I would just like to say that for anyone interested in the above question, this is well worth a look:
http://cbg.110mb.com/organisation_2.pdf
It manages to neither demonise the Bolsheviks, nor deify them, but locate them historically as an indispensible but contradictory force. There is a further exchange with a libertarian group which you can see the link to from this page:



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I don't see the problem with demonising the Bolsheviks myself - they deserve it.