"Today" section (or similar) 

You know, I can't actually see any reason for that paragraph to be in there at all. It doesn't serve any purpose. Voltairine de Cleyre would not support "anarcho-capitalism" as a type of anarchism, that should be obvious from reading the Wikipage on her. Having that paragraph implies that she would support it as a type of anarchism. Having that paragraph is misleading. I think a better thing to today would be to create a section "Today", where you can place information like that. The paragraph under dispute does not belong in "History". In that section ("Today") you could talk about how the poor anarcho-capitalists are getting a bad deal from everyone else, how their groups (do they exist?) aren't invited to anti-globalisation protests and so on. That said, I'm deleting that paragraph again, and I request that if you wish to put that quote back in, do it in a *new* section.AFA http://www.revleft.com 
Contemporary anarchists don't belong in the history section. That said, if you wish to have a quote from said contemporary anarchists (I'm one, does that count?), please work it into a new section. So, I think I might follow the quoted example, and delete the paragraph from the history section. (Also see the above section regarding how I will resist attempts to place "anarcho"-capitalism into history.