Dear Francis,
I think you miss my points and please calm down. I didn't ask him to shut up, did I?
His post certainly doesn't harm me a bit and I am not trying to harm him with my post either. I'm just suggesting him to do something that I think will be best for him. Is that not what I'm supposed to do in this forum?
If you've read my previous messages (a long time ago), you will know that I actually welcome posts which report problems of our equipment. In a way, these posts will alert us of potential problems of our equipment as well as allowing us to know them better.
The problem here is that Dan doesn't have the necessary equipment/facility to perform a proper test (he admitted that in his original post) and most of us are miles away (some, like you and me, are half a globe away) and couldn't really help much.
So, you tell me, what else is better to Dan than sending his camera +
- lenses for proper assessment and repair by qualified people at Canon Service?
Don't just sit here, telling me my suggestion's wrong. Please tell me what your recommendation to Dan to solve his problem is? Continuing to engage in the heated arguement here (that's my impression a least) or going back to Canon Service?
To be honest, Dan appears to me to be rather convinced that his 10d back focuses, no matter what other people say. That's fine to me. He has the right to do so and as a matter of fact, I don't have any judgement on whether his 10d back focuses or not from the limited information available.
However, I do think that there is no point for Dan to continue to argue here (especially when he has seemingly made up his mind and when a few people lose their cool, did you?

) and his interest is best served by sending his camera +
- lenses back to Canon Service. Don't you think so?
You know, I don't have telepathy and so when people consult me over the internet, after giving out some general advices, I would usually ask them to go to see a doctor locally rather than giving uninformed recommendation.
I know you;re very concern and you're trying to be helpful to Dan, but that's not reasons for losing your cool.
I'd be most grateful if you could enlighten me on a better way to help Dan.
Some people share their happiness of getting good 10D and good
shot. Should they keep silent rather than post here?
Some people share their unhappy experience of bad 10D, there is
nothing wrong with them.
Their post help others a lot to hear balance information for future
buyer. The only bad thing is people post troll or fake information
to mislead other people. Do you want they keep silent and let other
uninformed?
They post here and they can get comments from others, we see others
are querrying his finding and this help him to rectify anything
that might be wrong. His post at least no harm to you, right!