I remember when Forums like this and online news site comment sections would have nasty comments but they were always made by people with random user names. I always thought if they were posted by name the people would not make the same comments. Facebook and Twitter have completely proven that theory wrong! Maybe it's just the keyboard warrior nature. I may have opinions where I'm not an expert, but I know I'm not an expert so it's just an opinion or thought. I was always defer to the person who works or worked in that field.