What did you say

How is that that people allow themselves to say things in an attempt to make a point or to be assertive/aggressive that decreases their IQ and apparent intelect to such a degree. I am talking about profanity.

George Washington also set us a good example in this regard. When he learned that some of his officers were given to profanity, he sent a letter to them on July 1, 1776, from which we quote:
“The General is sorry to be informed that the foolish and wicked practice of profane cursing and swearing, a vice heretofore little known in our American army, is growing into fashion. He hopes the officers will, by example as well as influence, endeavor to check it and that both they and the men will reflect that we can have little hope of the blessing of heaven on our arms if we insult it by our impropriety and folly. Added to this, it is a vice so mean and low, without any temptation, that every man of sense and character detests and despises it.”

"Profanity is a feeble brains way of expressing itself" Spencer W. Kimball