But to get back to the first sentence, yeah... If people see a line, they should REALLY reconsider whether whatever they are going to say is important enough to get the thread back on track.
That's perfect... no better explanation possible...
The line of no postlyness is to stop people spamming up the thread while you report it to a mod. As you know mods take action as soon as possible, but that is not fast enough to stop a thread getting out of hand. Also, the line hardly ever works...
Yeah, sometimes it seems like it only encourages people to post more... Very weird, really. I wish people would remember to read the posts before their own... >.>