Me. I'm a skinny guy, and developed osteoarthritis in my neck due to years of intensive computer use (since 1981). The problem as explained by my physical therapist is sitting with a hunched neck. The acute symptom for me is a bout of pain running down my left arm and wrist, lasting several months before it goes away. This has happened twice. Second time, I switched to a standing desk.

As an aside, I don't goof off as much when I'm standing at my desk.