Funny - "Open source is commie" must be real news to people who are making FU money on it.
Pretty much all OS have improved, that much is true. I have to wonder how "uptime" is measured - do we count taking the system down for patching? Also, Administrative overhead is almost as important to me as uptime, so I avoid using Windows servers whenever possible.
$ uptime
9:41am up 1349 day(s), 16:51, 1 user, load average: 0.02, 0.01, 0.02