Big websites are software, though. You're drawing a line here that simply doesn't exist. Browse around the Midgard codebase a bit and get back to me.
You have strong statistical evidence to support this claim, then? Because my own experience with wesbsites has been that, yes, not all websites work perfectly all of the time.
There's not much to itT. itT is a webforum, it basically runs one piece of software. maemo.org, on the other hand, runs several orders of magnitude more than that—MediaWiki, Bugzilla, GForge, MXR, Mailman, Midgard, Gitorious, FeedBurner, etc, etc, etc. It's not a simple one-application website.
Things don't just magically work because somebody declares they have to. The maemo.org developers are people too, just as fallible as your or me, and if you want problems to be fixed, you have to report them. Otherwise you forfeit all right to complain.