But to _your perception_, it's politeness. (You previously wrote: "It's direct ("I'm confused"), but polite.")
On the other hand, I categorized it as prelude.
To attempt a meta observation, it seems people require "social lubrication" in the communication. Otherwise, it sounds harsh. The lubrication is a mark of kindness.
I don't require lubrication and harsh language like Linus' writing style doesn't bother me. The difference is that I would probably use "kinder" language in more situations than he would depending on the recipient.
>But "personally" is redundant - of course it's your personal opinion.
Right... to be meta, it's a restatement of my last sentence. "I personally don't like" is _softer_ than "I don't like" which sounds more like I'm a dictator. If you and I were founder & cofounder where we have "spirited" debate, I'd leave out the redundant "personally". If you were my employee that needs softer language, I put in the redundancies.