Gates showed his true colors right up front with the "Open Letter to Hobbyists", and pursued the rest of his career in like fashion. It's not just about Microsoft versus open source: many of us already resented their strong-arming, dominance-oriented, rent-seeking, ownership-hungry monopolistic approach to computing before the free software movement had really gotten going, or the term "open source" had even been invented.

It is interesting, especially in the context of Gates childhood upbringing and his extremely rare access to computers and computer training.

Something that maybe one or two other dozen children had access to in the entire country during that time (60s/70s).

You have to also remember that computers were also seen as a public good for a large swath of users during this time too.

Makes you wonder how different this industry would be if we replaced Bill Gates singular childhood privilege with that of Bill Joy's (which looks like your typical middle class experience)? Only instead of one child, you could probably help thousands of children.

This is consistent with the parent comment. You can have a hacker mindset and be totally against open source. They are orthogonal qualities.