Normally people who post on this FORUM wouldn't mind having a pro offer their opinion on how to play their game better. If I had a game posted and a high dan reviewed it with certain comments which were then pointed out by a pro to be inferior, I would have no problems with that at all. Go is a game of logic whereas music is not something you can quantify with logic.

Yes, however there are also teachers on the forum, and they do mind, so as a courtesy, its better not to solicit for such information, besides most pro's and teachers have better things to be doing like teaching paying customers the real moves.

While amateurs may have conversation that verges on training material teachers and those promoting their books, may not like this(though this speaks volumes about the content in their books).

Please explain what you are trying to say here! Do amateurs not like something or do book authors not like something? Why would either imply something on contents?

If professional writer needs to pick nits with amateur bloggers to sell his work, his work probably isn't all that attractive to begin with.

... that whole article is complete nonsense....
Ethics does not come into this at all. It's a simple and honest free market situation.

Speaking as an amateur musician who have played paid and unpaid gigs in several bands, that whole article is complete nonsense.

If you are a professional musician, then you are doing for money something that many people are willing to do for free. You are living many people's dream. You should either:

a) be happy with a reduced compensation because you are competing with others who do the same thing for free because it's so much fun

b) be much much better than amateurs so that you obviously deserve a higher compensation

Ethics does not come into this at all. It's a simple and honest free market situation.

Sure it is a free market, and I don't see it being regulated any time soon, but the meaning of the suggestion is that perhaps by considering ethics, we can promote both the entertainment and profit of the parties involved.

In your opinion, by what code of ethics should we consider in the case of the game of go to promote both the entertainment and profit of the parties involved. It is difficult to consider anything if it is not defined. A few people have pointed out that the ethics as defined in the original article is not suitable.

Ethics of any kind are unnecessary here. If you aren't good enough for people to want to hire you (to make musics, play games, teach go), you shouldn't whine to amateurs about it, you should get better (or get a different job).