Language!! What's the point?

SO this isn't a book review but it has to do with some books I recently read or started reading. I find bad language in a book almost completely unnecessary, it bothers me when bad language is published and it frustrates me when it is excessive. One of the biggest arguments for trashy language is that it helps the reader to understand the character or the mood better, but I believe that a good writer will be able to describe the characters feelings through imagery allowing the author to avoid the obstacle of curses. I'm not saying that dialogue isn't needed or trying to minimize its importance, I'm just trying to point out that bad language can be avoided if the writer had the will to do so.

The F-word gets its own little lecture. Everything I spoke about above applies to it ten fold and more. When I read a book and the author finds it necessary to enter the F-word into the text I'm done, I put down the book and wont pick it up again. It reflects bad judgement on the part of the author that they would think that I as a reader would enjoy reading anything containing such foul language. Personally I can never understand why anyone would use it. Throughout my life I have heard that word so many times that I find the use of it a joke, it has become a word used by people that often times have less intelligence, and act without maturity. So when an author uses the F-word it makes there character look stupid which in turn reflects on them, and all respect I had for them as an author is lost.