Just checked mine. I'm still OK. But then again I've changed my habits so I'm babying it. And that's not really ideal or fair for me now is it.
You can get it replaced under warranty but then you're at the mercy of the Apple Genius. All it takes is some joker to make it a bad day for him and *boom that'll be $79 for an Applecare Plus replacement thank you. Eff that. Not to mention the gas and time it'll waste for me to get it replaced.
Don't get me wrong I love my 6 Plus a lot, but the thing is if there's truly a design flaw then Apple has to step up to the plate and take responsibility. They have to clarify their exchange policy across the board for such a flaw if it exists. None of that Genius's discretion BS. I want a hassle-free exchange, especially if there's a known design flaw. Nothing less than that. If Apple takes the right steps to address this then this nonsense can be put to rest once and for all.