Come again? Are you serious? So if someone starts a thread on, say, 'Hughton out', or 'Vote UKIP', or 'Bring back hanging' you expect people who don't agree to just ignore it and not open the thread and argue their case?
Blimey!
Again with this, quite wrong, view of the conversation.
Someone has created a thread to moan about something they saw.
Someone else has come in and decried the pointlessness of this thread, suggesting people who contributed to it, instead of starting the thread and making their feelings known should have instead changed the channel.
When the hypocrisy of criticising those posters for moaning about something they can avoid, is highlighted, those that told people to stop watching instead of starting a thread are acting like they themselves are being told what they can and can't post on here.
They're not.
"Actually, I thought it was appropriately touching tribute to the man"/"Stevie single handedly lifted liverpool to a champions league title - Liverpool's greatest success of recent times" is disagreeing with people who were critical of the meal Sky and other media made over this.
"You know that thing you're saying we can do if we don't like it, you can do that with this thread, too, so you're being hypocritical when you tell us to just turn the channel" is not telling people they can't post in a thread they disagree with.