Once again you can't read. Having one person get multiple phones at random from a store on different days, with the same bizarre problem that causes their phone to corrode in a week, when no one else is reporting it, is statistically near impossible. My opinion is valid.
I think it's pretty pompous of you to claim that your opinions are the only ones valid. You don't know what expertise I have by the way, so your opinion on that is invalid. And your opinion that I don't believe Apple could produce a single defect is also invalid. I've had defective Apple products. Any company selling millions of anything will have a percentage of defects. And I've suggested to people in other threads here today that they may have a defective iPhone... One of them five minutes ago! So who's pompous?
You are. Again, because you a judging him and making a presumption about him without ever having observed his use of the product.
It is not a "bizarre problem". The finish on his product is wearing away prematurely. Let me use an example that completely disproves how problems like these are entirely possible:
I received THREE (3) Apple Watches with a weird scuff on the top left side of the watch. They were all the same type, where it looks like something wore through the surface layer, and there was a bit of a yellow/brown substrate. Perhaps it was oxidation, I am not sure. But it was not just a normal scuff/scratch. I have NEVER seen anyone else complain about this problem, online, and no one at Apple has ever heard of it. But sure enough, I have received THREE of them myself. Why was I the only one? It's likely that I wasn't, and that there were more, but those people never noticed it. It was tiny, and I inspect my products as soon as I get them. The typical consumer is just going to open the package, slap the watch on, and enjoy. Even for those that do notice, only a small number of them will complain, and even a smaller number of them will be on this message forum. Of those people actually on here, only a small number will have seen the thread, and even a smaller number will take the time out of their busy lives to post about it. Of those that do, even a smaller number will bother with pics.
Now, hypothetically, let's say that I was the ONLY person with that problem. That's entirely possible too. For one hour, one day, or one week, something went wrong with manufacturing. Someone put in the wrong mix in the metal alloy mix, or the coloring, or turned the temperature too high in some process that uses heat. There are so many steps in the process, any one small misstep could have produced this result in a very small number of phones.
It is not statistically impossible. It is entirely plausible, actually. Keep in mind that the 6S was just released a month or two ago, and lots of people have them in cases. Again, of these people, how many have taken them out of the case to inspect? How many are actually on this forum? How many would actually bother to post or complain? Very few.
It takes a long time for something to reach critical mass wherein an actual acknowledgment and/or recall is made. It took Apple nearly a year for the iphone 5 power button switch. When I got my new iphone 5, I knew that there was something wrong with teh button. It felt wrong. But the genius could not identify it, and Apple would not acknowledge it. Sure enough, 10 months or so later, there is a recall.
Not that this is a widespread problem. Just that your using what you think is statistics is not dispositive of much.