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IQ does not equal common sense!!!

The post was made in reference to the word "Dumb"
http://www.merriam-webster.com/dictionary/dumb

The word is poorly positioned in the parent post

1 a: lacking the human power of speech b: of a person often offensive : lacking the ability to speak
2: temporarily unable to speak (as from shock or astonishment)
3: not expressed in uttered words
4: silent ; also : taciturn
5: lacking some usual attribute or accompaniment ; especially : having no means of self-propulsion
6 a: lacking intelligence : stupid b: showing a lack of intelligence c: requiring no intelligence
7: not having the capability to process data — compare intelligent 3a

The parent post to my comment did not reference "common sense"
for that I would have had a very different response