I personally think that Motion Blur makes games look brilliant and much more smoothe. If there's an option for it, I'll turn it on as I love Motion Blur.
But what do you think?
The community I have seen so far is split into a 60-40 split - 60 being the people who dislike MB, the rest who do.

Totally depends on the implementation. It can add to a game, but if done poorly it can ruin it.

Totally depends on the implementation. It can add to a game, but if done poorly it can ruin it.

Quoted for absolute truth. Motion blur is a good thing - your eyes need it to perceive motion as realistic. The problem is, it is frequently done badly and hogs resources. I am 100% behind motion blur on the understanding that it's employed properly.

What must it be like to be done "correctly"? Motion Blur, to me, is the same thing in every game.
Some games may have a much higher intensity, which I personally will dislike if it's rediculous (ARK: Survival Evolved as an example), but most games have really nice Motion Blur which I really like. (Source Engine Games) Which are not too intense, but is still noticeable.

I do, however change the Source Engine Games' motion blur intensity myself as I can hardly see it. I like Motion Blur to be reasonably intense, but not to the point where you can't see fuck all when you turn around.

It cannot under any circumstances cause a drop in performance, especially in multiplayer shooters. It cannot look bad - you need to still be able to clearly see what's going on (NOT like some Michael Bay movies). It should look like a blur... not a liquid mess of colors.

Just a few things to start.

But, I do think this is off topic - this is a MUSIC discussion forum.

Just saying.

Hm... Yes, I think I should have put this in General Gaming. Apologies.
Motion blur is supposed to make games which run at a poor FPS smoother, so the last thing it should do is drop performance.

Motion blur that's generated according to a proper, real-world visual model generally works. It's not just a low FPS compensator - though a bit of judicious and restrained motion blur can fool the eye into seeing more FPS than there actually are. It provides visual clues as to what happened "between the frames" - it's an aid to realism. Done right, you don't notice it's there and it's resource light - but it's rarely done right... :)