Fair enough that you don't, but putting your opinion forward as fact (like most of the people here and the OP) doesn't really advance the argument. Perhaps a lot of people have trouble finding the compose button on first use?
Well yes, but he is the guy who wrote Gmail, and that does add a little bit of strength to his argument.
"A big red button is awful." isn't much good compared to "A big red button is awful because ..." or "Instead of a big red button you should do ..."
Fair enough that you don't, but putting your opinion forward as fact (like most of the people here and the OP) doesn't really advance the argument. Perhaps a lot of people have trouble finding the compose button on first use?