According to Steve Yegge, yes, absolutely. See http://steve-yegge.blogspot.com/2008/09/programmings-dirties... . The major points:
- "If you spend more time hammering out code, then in order to keep up, you need to spend less time doing something else."
- non-touch typists have less impact on text-based forums (like this one)
- "non-typist code is... minimalist. They don't go the extra mile to comment things"