p4pc
You do it to look important, even if you're just posting 'lol' 100 times in a row.
'I p4pc'd just to look cool. I'm not cool. I'm just a post count addict.'
'I posted 'lol' 100 times. I'm not lazy. I'm p4pc'd.'
'My post count is my power. I will p4pc until I die.'