Just got back from the weirdest Genius appointment I've ever had at an Apple store. Sat down and told the guy about the issues I'm having. He said, "Oh, yeah, I agree 100%. Worst keyboard Apple has ever designed. I personally would never buy one of these computers for that reason. And we've seen and endless stream of people with the same issue you have in here."
He said he'd run a keyboard diagnostic, but didn't expect to find anything technically wrong. (I'd just cleaned the keyboard a couple of days ago so it was working relatively well.) Here's the kicker: He basically told me he didn't have anything to offer. He said the keyboard is terrible on all of them, so replacing it doesn't make sense. He even told me that he'd replaced several of them for other customers, and in every single case they ended up having the same problem.
Could be that he just masterfully talked me out of a replacement, but I don't think that's what happened. They guy was genuine. Now I'm not sure what to do. I did order a 2017 MBP from B&H that is still unopened in its box. I wanted to wait until I had my appointment, for exactly this reason: in case Apple said there's nothing they can do.
I have to say that the forums seem to support his case. I've read so many posts of people who've had their MBPs replaced, only to encounter the same problem within a few weeks. This does suggest it's a design flaw and not an issue with individual computers.
On the other hand, I have a friend with a 15" MBP that he bought a little bit later (mine was ordered day of release, so in the first batch), and he's never had the stuck keys issue. And if everyone was having this problem, wouldn't there be some kind of class action lawsuit or at least a page one bruhaha on MacRumors?
With B&H, once I open the box I can't return it. So I need to decide whether to take a risk on a new machine and sell the 2016 I have now, or just suck it up and live with what I've got. What do you think?
P.S. The store rep did share the routine he's found to be best for cleaning: compressed air, alcohol wipes, and a nylon probe.