I get your point better now, but I still think you are too harsh. If Musk were to write a regular column for a magazine, I would still read it because it would be entertaining to read his perspective. He is famous enough that his conflict of interest is very visible.
For other run of the mill journalists who might be working for NYT the standard changes, unfortunately. I cannot possibly keep track of the possible conflicts of interests of hundred or thousands who write for NYT, so I'd like them to have none and NYT to pay them enough to buy that loyalty. Either that or disclose each and every possible conflict at the top of each article. Daring Fireball or marco.org or Asymco are sites with only one writer and I go there to get the opinions of designers or indie developers or whomever, aware that they primarily earn their money through means other than blogging. This might make their opinions biased, but it also makes them have a unique perspective.
The difference would be if Musk was writing a column that reviewed potentially competitive products. If he was writing a column
about his business, that's fair enough (although he'd have to make it very explicit). No news organisation would allow him to write a more general column on motoring or the environment, where he was potentially covering competitive products. It would have no credibility.
Does Gruber not make his primary income from blogging? His RSS feed sponsorship rates alone are $8,500 per month ($442,000 per year). That's on top of advertising income (a single, exclusive ad on a site with 4-5 million pageviews/month according to him), membership income ($19/year, no word on how many members), and T-shirt sales. There are certainly no sour grapes there; I don't think the amount you earn has any bearing on the standard of professionalism you are expected to adhere to. That said, he earns more than
any journalist working for the NYT, so I don't understand why you'd hold him to a lower standard because of it. If I were a paying member, I'd also be demanding a refund. Paying readers presume independence.
Gruber doesn't work for any organisation so he doesn't have a boss to keep him in check or a formal ethics policy that he has to subscribe to; I'm not saying he's broken any laws by doing this. I'm saying that there are standards of professionalism which are expected in this industry and which have also been breached.
I know professional journalists who have forgone very lucrative deals (consulting contracts and the like) to protect their independence. It's disrespectful to the profession for somebody like Gruber to be earning
millions of dollars from this App, especially because it's his name that's clearly driving the promotion, while he pertains to be a journalist and tries to call others out for failing to adhere to professionalism standards. Read interviews with him and he clearly likes to think of himself as a journalist; I don't think it's right that you get to romantically act like one but then shirk one of the biggest responsibilities that comes with the territory.
That's all I'm going to say on the subject. I'm not going to be reading DF any more. I know the loss of me as an individual isn't going to have any financial consequence to him, but I think the loss of trust in general is going to hurt. This is a big opening for somebody else to step in.