You do realize that some people here might have just heard of it and wanted to play it, right? I've met a good bit of people who are absolute fans of Valve but have yet to play Portal 2.
It's been 4 loving years. If you haven't played Portal 2 by now, then either do it or don't complain about other people talking about it.
In Cities: Skylines, when you're spending stufftons of money on fire services and buildings burn down for no apparent reason.