For a long time, I avoided capitals in exactly this way. It wasn't as negative as the reasons you've suggested. I figured that capitals were unnecessary for par

For a long time, I avoided capitals in exactly this way. It wasn't as negative as the reasons you've suggested. I figured that capitals were unnecessary for parsing because I didn't have difficulty reading my own writing without them. It wasn't until I began writing in larger paragraphs that I noticed what you've said here—that capitals do actually count in terms of speed. I wouldn't be so quick to attribute this to arrogance or nonconformity. I noted that the brevity of individual paragraphs is similar to the way I had been writing. Mixed with the font, which does make it easier to catch the beginnings of sentences, it's entirely possible that he's making exactly the same mistake I made in exactly the way I made it—such that he hasn't yet noticed it does have an impact on reading speed. Edit: Some of the other comments take a similar view, so I do want to point out that I may lack context. I don't use GNOME and I'm not particularly well-informed on the subject. My comment refers only to the lack of capitals and an anecdote about my own experience with avoiding capitals.