You list things on linked in just so you can blame potential employers for looking at it? I dont even have linked in account and still find it ridiculous to hold it against them if they dare to look there.
“How much time is the interviewer willing to invest” is a super legit question to be asking. It tells you a lot about how many shits they give about you in particular and is a good proxy for the quality of the team in general.
It's not that they "dare to look there", it's that they _only_ look there and don't care enough to look even a tiny bit further.