[Sherman Logan]

Those who are less intelligent are on average more likely to use the default setting.

Well, duhhh.

Personally, I use IE and Chrome. Have no idea what this indicates about my IQ and could not possibly care less.

[MEGoody]

Those who are less intelligent are on average more likely to use the default setting.

Or they feel the default works fine, so why fiddle with it when they have better things to do.