Microsoft’s original source code

Microsoft (and maybe even Bill Gates personally) generated a strong "dislike" sentiment to the hacker community. But we can't deny that he and Paul Allen were pure breed hackers and helped a lot the development of technology. Of course, we all prefer OSS and we'd pick Linus (or insert OSS dev name here) 100 times over one of the "evil capitalists"/s, but nevertheless they have to be recognized.

It’s also kind of difficult to hate on a guy that devoted his remaining decades to literally saving tens of thousands of lives around the world.