Not that I would ever beat a mule of any sort, but you know how the saying goes. If the eVerse has a rented mule, it is Smashwords.
This fact is partly due to the fact Smashwords is practically a grey-haired veteran of the electric publishing world. Started in May 2008, it’s ancient in the eBook world. But the reasons for maligning the eBook publishing and distribution platform are as diverse as the books Smashwords spits out through its “meat grinder” software.
Some fart in Smashwords’ general direction due to its complete lack of quality control. (They will publish anyone willing to format their content to meet their meat grinder requirements.) Some thumb their noses due to the fact that Smashwords is anti-DRM (Digital Rights Management, or Drunken Rowdy Monkeys).