[AdmiralAsshat]

The emotional response is probably the most egregious that a developer can do, but I stand by my assertion that developers aren't trained in communications. I work with some developers who write amazing code, but if you read their emails, you'd think they were written by a ten year-old. The responses are terse, lack proper punctuation, and usually rife with misspellings. And that's fine: their job is to write code, after all. But it doesn't look good if that raw response goes out to the customer.