Maybe I'm just thick or a democracy fetishist but I don't really get the point of them. Firstly, going on about how you're opposed to "democracy" will make you sound like some kind of totalitarian vanguardist to the uninitiated - but that's really an issue of how you present yourself to the outside world, not a problem with the critiques of democracy.
Second, it all seems rather abstract - UAW workers may have voted for a no strike clause and then immediately contradicted it, but what is there to be done about this except note it as a rather interesting phenomenon? Surely all the groups that have a "critique of democracy" still operate on democratic principles? I see no alternative. Except that having a supposed critique of democracy might provide ideological cover to allow you to excuse your own Machiavellian political maneuvering.
Finally, one of the problems democracy apparently has is that is "separates decision and action" - so fucking what? Is this some kind of uselessly abstract complaint against separation, alienation and mediation one often sees in the more annoying philosophical distortions of theory turned in on itself (see for example John Zerzan's opposition to "mediation" taken to its absurd conclusion). In a practical sense, I have no problem thinking about what I'm going to do before doing it, even if I might change my mind when the moment comes - it's certainly better than the alternative.
Abstract anti-organizational ramblings are of course useless bollocks, but critiques of democracy as ideology are very useful I think especially in regards to leftism and its role in capitalism (and the idea of socialism meaning the "expanding" of democracy within the current framework). The "uninitiated" (not the best term imo) take democracy as a great historical development rather than a simple organizational tool that works in specific situations.
This is what I think is the main gist of this article:
http://libcom.org/library/democracy-as-the-community-of-capital#footnote6_mfhus50
that you commented on recently, not the "separation of thought from action" thing.