Being "lead" isn't the same as being bossed around. As long as the leader doesn't claim some authority over the other members, it can still be "anarchist" leadership.
Surely the anarchist would have dismantled the power structure and put some kind of heterarchical system in its place, assuming he had the power to do so. If he was just planning to sit in his special chair and laugh it up, then yes, that is ridiculous.
If one is promoting a system radically different to the status quo, one inevitably has to compromise to some extent to make progress, unless you're planning a violent coup or something.
I just find it ironic that self proclaimed anarchists require leadership to function.
Not that I disagree, just, it's a bit funny is all.