Well it's largely based on lack of knowledge with non-experts calling the shots! I agree totally. Any pilot discussion seems to get taken over until the pilots get exasperated and leave it! Some of the contributions are bizarre, starting with arcticfan, leading on to other non pilot contributions that get nowhere. Total waste of time, so I removed mine and kept out!
You want evidence- look at the Airbus thread! Page after page of ...... nothing.