Just because you know something about a subject, does not make you an expert. Just because you've been doing something for a long time, does not make you the end all be all of that. We all have opinions, doesn't make us right. Nor do you have the right to shoot someone down because they don't share your opinion. Grandiose, entitled people...the Internet is full of them. It's nice to hide behind your computer screen, isn't it.