They have a 30 day time frame to leave a review. That's why so many reviews just say "Everything arrived on time" and none of them say "this thing broke after 31 days".
AliExpress highly encourages leaving a review. They also encourage taking pictures. As a result, loads of random pictures in reviews.
You can do an additional remarks later, but I often don't bother. It's drowned out anyway.
What I often do is read the reviews. What's usually done is a critical review and still 5 stars. The fake reviews are pretty easily spotted. It shouldn't be this way, but in my experience it's still better than Amazon. With Amazon more effort is made to fake a review.
On mobile screens the cards that were previously selected take a lot of space in the background; if you click that background card, intending to “deselect” the foreground card, then you suddenly play the background card. But yes, if you click anywhere else then all cards are deselected. Still, I find this very unintuitive.
I changed the behavior now: tap and hold magnifies it and short tap select the card. At least with my fingers now I was able to avoid the mentioned side effects
Interestingly, my experience with it has been the opposite.
While it's quite good at understanding what's in the picture it only has gotten my country right a few times and even then it just gives the capital, which I'm quite far away from.