Actually, one pet peeve I have is when people are too damn lazy to make an attempt to type correctly.
"u" to replace "you"
"there" replaces "they're" and "their" and the three are used interchangeably.
"your" replaces "you're"
I used to use "u" as "you" when I was 13-14. They I started writing it that way in school, and realized that had gone too far.
