Do they include some sort of userID on each question? I'd be interested to see those same results but only including people who asked a question for a language

Do they include some sort of userID on each question? I'd be interested to see those same results but only including people who asked a question for a language in each group. One commenter hypothesized the difference you're seeing is because "employed" and "weekend" programmers are two different groups of people. I'm trying to download the data myself now, but the torrent isn't getting anywhere.