Its common sightseeing for me to see wordpress permalink untouch or  customized.
In my opinion permalink provided by wordpress really help in the eye of search engine.
For demonstration purpose I take a few blog from Wongkito Community :
>> Default
1st example : Take IT Or Leave IT

When I click the title, I’ll see this url :
http://blog.jafisnet.com/?p=200
As you [...]

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