People who can't write "your" and instead use "ur"
Maybe they're just ignorant about your vs you're? My brain reads it as a grunt, an onomatopoeia. Then I think "how lazy is this person?!" Then, "I really can't stand that caveman language." Only then can I continue reading.
Also - ppl is ridiculously dumb.
EDIT - I'm loving the downvotes from you barbarians.