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Also, it proves that his name can be spelled without the underscore.

If I recall correctly, the underscore is only added if the name would cause confusion otherwise.

generally _why causes confusion with or without the underscore.

Yes, but why cause more?

I can't decide if I should upvote you or downvote you for that pun.

Either way, I will definitely whack you for this the next time I see you.

Yes.