Re: Dear Mr Reviewer.
"Because 24fps is good enough for movies without noticable flicker?"
To be fair, that's most likely interlaced, effectively (visually) doubling the frame rate.
I'll even do the math for you, it looks like 48fps, a lot closer to that 60fps everyone is talking about.
I downvoted this, because you appear to have forgotten that pre-digital, physical reel film projectors are not interlaced, and ran at 24fps. You also appear to have confused framerate and flicker rate; films being shown at 50Hz 1080i have a 50Hz flicker rate, but only a 25Hz framerate. If your HDTV is displaying a game at 1080p/60 and the game is running at 1 frame per second, you still have a 60Hz flicker rate, but it is most assuredly not 60fps.
A smooth, persistent 30fps (married to a display running at a multiple of 30Hz) is perfectly adequate to fool the human eye into seeing smooth transitions. What most people moan about in gaming is variable framerates (which can be jarring) and/or tearing from not having VSync enabled (which can also be jarring).
Complain about Unity or Halo having variable framerates and I will agree wholeheartedly. State that 30fps is unacceptable for a smooth gameplay experience and I will just as wholeheartedly disagree; a persistent 30fps is absolutely fine as long as it stays at that rate and there is no tearing.