Having followed the links, I'll hold my hand up here and admit to agreeing with much in the article, and explain where I come from.
First the 'Tragedy of the Commons' has previously been thrown at me to justify the fact that common land must be privatised. I was quoted extracts from Hardin about the herders on common land and told that the theory came from studying English common land in bygone times. My understanding of the use of common land in local areas, and IIRC throughout England and the UK, was that it worked quite well in a self regulating manner. The theory that everyone will always act selfishly also doesn't square with my personal experience (BTW SeldomSeen - not just my 'permaculture buddies' - but including an urban environment and certainly not buddies, but a mixed community with potential racial problems!).
I looked up the references to the study of English common land, and some of the sources seem to be suspect to say the least. A critique (which I based the thread on) can be found here.
http://links.org.au/node/595.
If the link you gave is the actual text of Hardin's 'Tragedy of the Commons' I don't have any major problems with it at least on initial perusal. It is however misquoted/misused by many to justify the promotion of privatisation. I apologise for not looking past the usage in more detail and for accepting the quotes at face value.
If however the actual text is saying that it is inevitable that common land will be mis/overused, I cannot accept that as a fact. It was the enclosure of the commons by the Church and Royalty in Britain that led to the overgrazing and destruction of much of Britains native forest. I'm not looking back to some rural idyll and I'm sure life was hard, but self regulation by local communities worked for many years.
The link you provided actually seems to argue against market forces and for regulation. One quote which comes immediately after the 'herdsman argument' seems particularly important.
$this->bbcode_second_pass_quote('', 'E')ducation can counteract the natural tendency to do the wrong thing, but the inexorable succession of generations requires that the basis for this knowledge be constantly refreshed.
Maybe Hardin's misquoted or used out of context on a regular basis, I haven't the time to study in much depth, but if Thatcher can misquote Francis of Assisi I suppose he's in pretty good company.