To Chris and Richard,
Having taken an Easter break, I have come in a little late on this one. Although this thread has not had obvious links to e-learning, it does not seem to contravene any proscriptions stated for the forum. Even when we are clearly discussing e-learning I would contend that we often air "our individual political views" - we can't help it, as our dialogue is contextualised and non-neutral. IMHO, it's better if we make that clear as many posters have within this thread, without becoming personal or offensive (I don't think anyone as done that).
Online forums may very well want to take action against personal offence or maybe spamming/graffiti attacks. What is off-topic could be dealt with by ignoring it - an off-topic post being by definition one that everyone ignores.
I think it would be a mistake to try to define what is an accpetable topic on this forum. Remember the response to events like the Tsunami - that was a good exchange I think.