When I see one clueless hiring manager or recruiter, I can easily shrug it off and move on. When I see everyone making the exact same bad decision (your experience is worth zero/negative unless it's exactly the tools we need), then I wonder if I picked the wrong career.

Fortunately, I only need one job, so if 99% of people doing hiring are clueless, I only need to find one who values my experience and ability.