Insulting is a emotional judgement, and j=such judgements may be specific to certain communities who are especially disadvantaged, or maybe receive such 'advice

Insulting is a emotional judgement, and j=such judgements may be specific to certain communities who are especially disadvantaged, or maybe receive such 'advice' very regularly? --- To take the emotions out, I had witnessed an interesting exchange a while back. A startup dealing with removing plastic from the oceans posted on LinkedIn about their work, and highlighted the difficulty of sorting the different types of plastic (so they could be subsequently dealt with appropriately). Their current method was simply humans sorting the plastic manually, by sight. An LinkedIn acqaintance thought he had a solution for them, and tried to get in touch with the startup. He was gently but firmly rebuffed, and was very upset that the organisation didn't "give him anyone senior" to deal with. His ego was bruised. The funny thing was, the startup was totally correct. This guy is a marketing consultant with (I know) zero domain knowledge of anything related to plastics, recycling, computer vision, robotics, etc. He was just an arrogant guy who absolutely didn't understand anything relevant in the problem space.. and yet still thought he needed to get involved and offer his opinions and ideas. Was his approach insulting? Not in this case, but potentially so, in more sensitive areas. More than anything, it was a powerful example of the Dunning-Kreuger effect in action. :)