Downunder, I think you don't realise the events and what's going on.
First, a Troll is "a person who enters an established community such as an online discussion forum and intentionally tries to cause disruption, often in the form of posting messages that are inflammatory, insulting, or off-topic, with the intent of provoking a reaction from others".
Trolls cause exactly this type of discussions to happen. Everywhere in the society there are rules and people follow these rules because we are sure they will keep things working.
Go back to the topic that caused this thread to start and read the question again. It's not a real question. The person did not bother coming back since and I doubt s/he is worried about having a response. The whole idea of that post was to cause problems - and see how much it's caused so far?
People come here to learn and share. If someone posts a trollish thread and we lock it, are we the bad guys? It looks like you think so. Why should a site owner let people posts things that are clearly aimed at creating confusion?
I don't see bar owners let troublemakers in. Why should I?
If people want a decentralised, non-managed, completely full of trolls place to discuss things, then I can recommend the usenet with its thousands of newsgroups.
So, to end this topic, and once and for all, this is not a private club. It's a managed club. Everyone can join, no invitation is required, but people must play by the rules. Be nice to each other, and discuss things on topic. Being a troll is not nice.
Is that clear now? I won't be replying to this topic anymore since there's nothing else to say about this.