Why not

[Mopman]

I wouldnt have room in my head for it.
Why not punch yourself? Or your boss/teacher/parent?

[The Holy namelesskitty]

Because I would get hurt/fired/suspended (maybe expelled)/ grounded.

Why not listen to great music?

[Mopman]

Ah, but I do. Queen.
Why not become a fan of the mardek series?

[ArtDrake]

Too late. Already am. But I hate the leveling system.

Why not ask a stupid question?

[bugfartboy]

Because then stupid people would be posting intelligent questions.

¿uʍop-ǝpısdn ʞlɐʇ ʇou ʎɥW

[ArtDrake]

Dunno.

Why not shrug life off?

[bugfartboy]

Because life is too precious to just ignore or claim it came from blue green foamy pond scum.

Why not bow to God at the final Judgement? (If the answer is "I don't believe in God" expect to have a bonfire. With a million sad other people. With you as the bonfire burning eternally. Have fun.)

[ArtDrake]

Well, the final Judgement isn't coming around any time soon, that's why. And life didn't come from blue-green OR blue green, foamy or otherwise scum, and if it had, it certainly wasn't in a pond. And finally, show me where, on an anatomical diagram of a soul, the nerve endings are. Bonfire? Borrring...

Anyway, at least cyanobacteria's life came from cyanobacteria.

Why not simply accept facts that present themselves, instead of trying to refute them with the claim the Devil is testing our faith?

[bugfartboy]

Because I don't believe the devil is testing my faith. I believe that the very sinful nature of man is attempting to test my faith.

Why not agree to disagree and avoid theological discussions?

[ArtDrake]

Oh, because you're the one that brought it up?

Why not just have a peaceable discussion in the Politics section?

[Steel Ersatz Man]

Because Politics is a very tricky subject with many strong opinions.

Why not change your name to I.P. Freely?

[The Holy namelesskitty]

Because I don't.

Why not avoid spamming other threads with theological arguments.

[ArtDrake]

Because it's usually Buggy that starts it.

Why not stop meddling in our disagreements over social policy?

[bugfartboy]

Because of something.

Why not accept that it takes at least two people to argue/fight?
(To use phrases such as So-and-So started it shows immaturity. It takes to people to fight, debate, or argue. Therefore, you are equally as guilty so using phrases as the you used above is shrugging of your own responsibility.)

[ArtDrake]

Why not accept that sometimes, when your beliefs are misrepresented, trodden on, or had blatant lies told about them, one has to defend them.

Did you know that Jesus Christ was descended from Buddha? That's how your misrepresentation of Darwinian evolution feels to me.