A mamin – I don’t think it was closed-mindedness in this case. I only skimmed through this thread, but my impression was that many of the posters had never heard of the minhag and didn’t know if there was a source for it.
“when so many ppl here are ignorant to any minhag they never heard of?”
Most people are ignorant of things that they never heard of. That doesn’t make them close-minded.