You could make anyone unhappy by "asking the proper questions," irrespective of what they have in their LinkedIn profile. Doing that is called "being mean."
Frankly, I find the almost passive aggressive lack of asking proper questions to be a little condescending and mean in and of itself. One of my favorite movies has several themes, but that's one of them. It's name, very interestingly enough, is Mean Girls.
I'm somewhat of the opinion that the people you're talking about will have considered answers to the so-called proper questions you have. It may be that they need to think to answer some.
Constructing some fictional individual who's bullshitting on LinkedIn and then tearing them down is top-shelf insecure behaviour.
https://othersociologist.com/2017/07/15/where-are-you-from-r...
For a competent person, a few proper questions present an opportunity to better explain their proposition, thesis, or thinking, and an opening to a potentially great conversation.
For an incompetent answerer, a few proper questions merely reveal the shallowness of their thesis and thinking. if they're smart, it'll be an indication that they should go back to the drawing board. If not, it'll just be an embarrassment, but informative to the questioner (as in, this person's ideas aren't worth more time).
If your only goal is maintaining superficial social connections, then proper questions should be left out (and there are times where this is indeed the goal and so appropriate). If the goals are more broad, then ask away...
It keeps throwing up the occasional article that I actually want to read, often because some random person I'm mysteriously connected to liked it.
If the algo gets "too good" I find it gets too samey.
Also there's some humour to be found when every other person is a "thought leader" but graduated less than 10 years ago. The self-puffery is kinda fun to watch. You can imagine how deflated the person would feel if you met them IRL and started asking proper questions.