The following is one of Nasreddin's tales.
On his first day as the village's imam, Nasreddin Hodja was seated on the raised bench, preparing to give his sermon. The congregation was quite anxious to hear what he had to say. But The Hodja didn't really have a sermon ready.
`Do you know what I am about to tell you today?' he asked.
`No, Hodja Effendi, we don't.' they replied.
`If you don't know what I am going to talk about,' the Hodja said, `then I have nothing to tell you.' And with that, he got up and left the mosque, leaving the puzzled people behind him.
The next day, when it was the time of the sermon, Hodja was back on his seat and the congregation curiously waiting.
`Do you know what I am about to tell you today?' Hodja asked again. Having learned from the previous day, the people were not about to say `no' this time.
`Yes, Hodja Effendi,' they all shouted, `we know.'
`Well,' said the Hodja, `if you already know what I am going to tell you, then I don't need to tell it to you!' He got up and left. The people gathered in the mosque were at a loss.
The third day Hodja came and sat down, and asked his question.
`Do you know what I am about to tell you today?' The congregation was not going to let Hodja get away this time without giving a sermon. Some of them replied with `yes, we do' and some of them replied with `no, we don't.'
`In that case,' said the Hodja, `Those who do know should tell the ones who do not know.' and slipped out of the mosque.
And that, my friends, is exactly what's going on trading forums where those who "know" advise those who don't.
I borrowed this tale from a site that hosts an extensive collection of such tales, http://www.readliterature.com. The tale is entitled "The First Sermon."
I have written a bit about trading forums in the past, both on my site at http://www.eminimethods.com, and on my blog. I spent about a year on one of them, and I am glad that I quit eventually for I am only a better trader for that. For quitting, that is, and not for posting there.