As I've stated numerous times, my principal objection to left-libertarianism is not cultural, but economic and scientific. A real-life economy simply could not function on left-libertarian principles. This is because the simplistic rule of "no hierarchy" essentially means "no division of labor."
The entrepreneurs, inventors, innovators, and "men of the mind" (as Rand called them) will always be the leaders, the risk-takers, and the project managers. Everyone else will always be (voluntary) followers, for their own benefit. As Tom Woods put it:
Leaving aside the odd view that only manual laborers engage in “work,” all the brawn in the world could never have produced a steam engine or a Pentium processor. Only when informed by the knowledge of inventors and supplied with the capital saved by capitalists can the average laborer produce the tiniest fraction of what he is today accustomed to producing.
So the left-libertarian desire to "smash hierarchy" amounts to "smash the brains of the operation" and "smash the division of labor." Let the workers democratically replace the mind of the person in charge! (And let's allow hospital janitors to "vote" on the decisions of surgeons while we're at it.)
A comment on Rad Geek's blog also discusses the inescapability of the division of labor:
Well, let’s set this straight: the difference of talents and character will certainly produce labor contracts wherein the capitalist assumes the (entrepreneurial) risk-taking weight and the wage-earners obtain a fixed income where there was none in a self-“employment” setting. This vertical division of labor is far superior (as the horizontal or trade type) to independent laboring. The fact that you find it forming over and over, spontaneously (see Menger-Hayek-Leoni) in small populations, deserted areas and anarchic settings (no black flags or blogs, just the lack of any State presence suffices) must tell you something about its validity as an institution.
When I bring these types of arguments up to left-libertarians, they get angry very quickly and claim (unconvincingly) that they aren't against the division of labor. But it has to be one or the other--either no hierarchy or no division of labor. Take your pick.
Other left-libertarians realize how weak their position is after you explain it to them. Some will gradually concede, "Fine, there has to be some hierarchy and a division of labor. It's the autonomy of teh workers I'm concerned about."
Fine. I'm concerned about that too. Focus on autonomy, then. But I won't be satisfied until all of them confront these problems head-on instead of evading them (before going on to ramble about "hierarchy" again, as if they have some keen insight the rest of us are unaware of).
Another dilemma left-libertarians refuse to confront is that of "usury." Few of them will give a straight answer on whether they think it's ok to make profits off a firm one doesn't work in. IMO, anyone not opposed to that is not a leftist or left-libertarian, but some breed of capitalist.
So ends another post on a subject that's getting tiresome. But I had to get my thoughts out there.