Akuperma, fanatics are in the eye of the beholder.
Joseph, you have an uncanny knack for being wrong. The term came to distinguish observant Jews from the non-observant (Chofshi’im). BTW, the English equivalent “Quaker” was originally a derogatory term used by King George I to William Penn, who would not take his hat off in deference to the king. Penn told the King that instead of worrying about silly thing like hats, he should be “Quaking before the Lord.” The King then responded “Get this quaker out of here!”