As any good writing or speaking course will mention, swears are a literary crutch.
English especially is a wonderful langauge for wordplay. Like most langauges we have entire genres of humor based on how and which words are used.
Most of the swearing I see on the internet is simply a lazy stab at adding adjectives or getting a reaction. I feel the same way about the (over)use as John Hodgeman does about the word "meh."[1]
I think you gain an even greater disdain for swearing with the more critical literature you read. Reading Ebert's movie reviews or perhaps Gordon Ramsey's words, you realize they have a kind of eloquence that you don't often see in everyday speech. It is because they work at it, and refined writing is beautiful, but also because they take the time to avoid lazy crutches like swearing.