It's all perception. I sometimes perceive it as yelling but if you're familiar with the writer then that can change perception, because you better understand the person's personality. AP9 used to have that yelling rap style which I liked, but when I first saw his posts on here it felt like he was yelling but over time that perception changed, except for the times he gets mad of course.
Sometimes it depends on what you're saying...for example
TOP OF THE MORNING TO YA GOOD SIR. HOW WOULD YOU LIKE YOUR EGGS?
That does not sound bad, but then...
THEY BETTER BE SUNNY SIDE UP OR I'M GOING TO POKE YOUR EYE
Big difference for me