> I don't know why choice of language is having such sway in determining what you view as professional
This is a blog post: it's purely textual, language is the only thing it uses to convey meaning. The words chosen to do so reflect what the author thinks.
> where I'm from people just use the words they need to to communicate what they're trying to say
Yes. What ark is trying to say, via the words he chose, is what's earning him the description of "unprofessional".
He could say every factual thing in the blog post without being unprofessional, he just chose not to.
This is a blog post: it's purely textual, language is the only thing it uses to convey meaning. The words chosen to do so reflect what the author thinks.
> where I'm from people just use the words they need to to communicate what they're trying to say
Yes. What ark is trying to say, via the words he chose, is what's earning him the description of "unprofessional".
He could say every factual thing in the blog post without being unprofessional, he just chose not to.