Which way is this question leading me to answer? How can I tell? "Yes" and "No" seem equally acceptable answers here. I don't see how either one would "displease the asker", without knowing more about the situation.
However, regardless of leaning, the non-leaning version feels like it will generate more interesting responses, while "Did you like it?" is likely to elicit a "yes" or "no".
More importantly it directs you to frame your reaction on a simple like-dislike axis, when the full spectrum of your opinion is probably more complex, and eliciting that yields a better conversation.
But this reminds me of a time when I went to movies with some younger family memeber and their friends. After the movie they asked each other if they loved the movie. To me love was really strong word. I wanted to say I liked it, not loved it but then I thought no need to be negative here. So I just said yes.
So when people ask did you like the movie, many people subconsciously say yes even if they disliked it.
It was a two hour movie, surely the answer is more complicated! Caveat: does not apply to all movies.
Makes the question more open ended and encourages the person to dig deep for answers and think critically.
"Did you hate the movie?"
The idea is that people are more comfortable answering yes to a yes/no question.
It’s like asking “Is the pharmaceutical industry good or bad?” vs. “How should the pharmaceutical industry participate in society over the next 20 years?”