6. Jamie Oliver
Twitter Handle: @jamieoliver
Example Tweet: "anouther true story a massive amount of uk farmers use human waist as fertiliser on there land! do any other countrys do this? is this normal"
Superstar celebrity chef Jamie Oliver is guilty of many grammar mistakes: capitalization mishaps and, perhaps most of all, punctuation errors. Hopefully his No. 6 spot doesn't hurt our chances of getting a reservation at his soon-to-be-opened Italian eatery in NYC.