Design decisions don't appear, they are made by people. Going over the top with profanity or LOL's or l33t speak might make it more entertaining to read, but an

Design decisions don't appear, they are made by people. Going over the top with profanity or LOL's or l33t speak might make it more entertaining to read, but anyone even a little predisposed to disagree with your assessment is a lot more likely to go on the defensive. If I said was talking to someone and telling them a design decision I encountered was shitty and bad, and it turns out that was the person who made the decision, I'm going to be a lot less likely to convince them of my assessment then if I just said "Choosing to do X instead of Y will make it 1.3x faster". This means the writer is choosing to write for audience entertainment instead of technical advancement & improving the status quo. It's not impossible to do both at the same time, without the insulting tone.