the quote i was responding to is "In your case, you have some fundamental ideals which have to-date, no evidence whatsoever of working in reality as theorized". one anecdotal reference is enough to disprove that statement.
otherwise i agree that anecdotal evidence is generally not sufficient in order to "prove" larger points. though, i think my specific anecdote is sufficient to prove the micro point that moving towards the direction of theoretical marxism and anarchist theory is indeed possible. it's factual evidence. one counter-argument i could come up with is that all or most of the villagers of marinaleda are exceptional personalities which make it possible for them to live such lives but this is, of course, not the only anecdote of libertarian socialism and communism working out for people, thus indicating that marinaledan life is not a result of exceptional personalities.
http://en.wikipedia.org/wiki/Free_Territory
http://en.wikipedia.org/wiki/Anarchist_Catalonia
http://en.wikipedia.org/wiki/List_of...st_communities
perhaps interestingly, most of these projects were disbanded because they weren't tolerated by nationalist movements and often violently destroyed.
of course, none of these are perfect examples of theoretical communism but many of them come relatively close.