Apparently they did that sometime after Feb 1, because that's the last day I was able to point out a DRM-free book.
This is a very annoying and unhelpful change which basically drops into negative numbers the probability* that I'll ever bother buying anything from a KDP Select exclusive-or-else author/publisher, much less recommending the selected titles to others.
I already dislike the limitations and frustrations associated with working with the Mobi format and the way Amazon slaps a $2 extra per-book surcharge on customers living in less-privileged countries who may or may not own actual Kindles to read said books upon,
And I haven't been too keen on the way that people have been yanking stuff I was kind of interested in getting from other venues in the rush to cash in on the KLL lottery pot with the resulting Kindle-hardware-or-app-that-only-runs-on-certain-platforms lock-in marginalizes anyone with a different reader/PC setup who might have wanted to get that book. (Offering KDP-exclusive new stuff is okay, but yanking the series out from existing customer/readers elsewhere seems like a really unhelpful move, especially if there's DRM and file format conversion involved).
But at least they used to still list a clue to the DRM status so that people who wanted to read an exclusive title could still go buy and load it without having to take apprenticeship lessons if they didn't want to.
Having to play DRM-Or-Not Roulette every time from now on totally kills the likelihood that I'll personally consider their work sufficiently good enough to overcome the existing hat trick of retailer-purchasing DO NOT WANT.
If I have to do that, I'd much rather pick B&N, whose format I prefer and whose DRM I find considerably more palatable and from whom I can get a tiny amount of cashback on a gift card purchase, almost enough to offset the currency conversion loss from paying in USD and having to jump through hoops since they don't officially sell to mere Canadians.
Well actually, I tell a lie. When one of those backlist author sales came up over the holidays and I was tempted by several titles which turned out to be only on sale at B&N (not available to Canadians!) and Amazon (have developed a pathological aversion to even downloading in Mobi format!), while a perfectly good Smashwords version (openly DRM-free! multiple formats of my choice! doesn't charge the unfortunate foreigners extra for the privilege of shopping there!) existed at full price, I just ended up saving money by not buying any of those at all.
Anyway, I encourage authors/publishers to start including the DRM status of their particular titles in their Product Descriptions if Amazon will no longer supply that information to the customer by any means.
And I also suggest offering special promotional sale prices across all the existing venues, or at least offering them in a combination of venues that cover more than only one country and file format at a time, but then that's just my shopping preference.
* I do not exclude the possibility entirely. Only one would have to be a favourite author offering an extremely compelling value-added work which was proven to not be available anywhere else and not likely to be that I really and truly wanted to read enough that I would have bought a deluxe limited edition hardback version of the whole.
And I don't see that happening any time soon, unless there ends up being a mash-up of John Morressy and Meisha Merlin both returned from the dead long enough to offer up their planned-but-never-printed 3rd Kedrigern compilation which would have included the later novels originally written in English but only ever printed in Polish translation because the regular publishers didn't think they would sell, along with a bunch of magazine-printed short stories I've apparently never read.
Because yeah, that's about what it would take.