I've never regretted not making Linux shareware: I really don't like the "pay for use" binary shareware programs.

While we ended up having several core maintainers use BitKeeper - it was free to use for open source projects - it never got ubiquitous. So it helped kernel development, but there were still pain points.

The correct form factor for a laptop is obviously 12" and 2 lbs, and I don't understand why everybody gets that wrong.

Other people have other goals, and sometimes the BSD style licenses are better for those goals. I personally tend to prefer the GPL, but that really doesn't mean that the GPL is any way inherently superior - it depends on what you want the license to do.

Portability is for people who cannot write new programs.

With software, you really can replicate and do a lot of very real and active development in parallel, and actually try it out and see what works.

One of the reasons that I really don't mind that people are selling Linux commercially is exactly because it does make me feel good that people use the product.