Questions: Wahhabism and Salafi IslamEdit:
This thread is getting long enough to the point that I realize earlier questions have been answered. So I needed to edit my post to ask about other stuff. I realize that earlier two posters came into disagreement on the movement's history, so I hope that I'm not re-opening anything.
Checking the Wikipedia entry
on Wahhabism mentioned that the term is considered derogatory by many practitioners, who use the term Salafi instead.
But the Wikipedia entry page for Salafism
hints that it might be a form or variation off of original Wahhabism, basically more modern (post-1960s) movements incorporating elements of the original doctrines:
The Salafi movement is often described as synonymous with Wahhabism, but Salafis consider the term "Wahhabi" derogatory.At other times, Salafism has been described as a hybrid of Wahhabism and other post-1960s movements.
So if Salafism does borrow elements from Wahhabism, then how did the term "Wahhabist" become derogatory? The sourced quote mentions that on the Pakistan-Afghanistan border opponents of Salafis referred to them as Wahhabis. But the Wikipedia page earlier mentions that most Saudis identify as "Wahhabi," with the rest "Salafi." So to me it seems that the term is not derogatory so much as it betrays lack of ignorance between two separate groups in Saudi Arabia, one of whom still uses the term. But over in Pakistan and Afghanistan it is derogatory due to the morphing of the phrase into a slur by enemies. Considering both groups' prominence in Saudi Arabia, I'm wondering how the conflicts in two other countries crept back over to Saudi Salafis.
However, the contemporary entry on Salafism in Wikipedia mentions that they consider the term derogatory because it implies they founded a new school of thought rather than returning to earlier Islamic principles. This last part is not sourced and has a 
quote. Is this an accurate viewpoint among Salafis?Edit: Qu'ranic Literalism Questions
In regards to Formless' last response about the peculiarities of classical Arabic and word choices, I was wondering if there has been any significant "Qu'ranic Literalist" movements in Islam's history similar to Biblical Literalism among Protestant Christian sects.
Basically, Biblical Literalism holds that there are no parables or metaphors within the Bible, that all of the statements are meant to be taken literally. Has there been anything like this among Muslims with the Qu'ran to the point where the idea gained a lot of popularity and influence?