I'm guessing it's there for readability. Someone might have missed the negation once before and figured out that by adding two more exclamation marks the logic stays the same, but he will not miss it the second time. So it's there for emphasis, like 'NOT' instead of 'not' in a plain text sentence. This would be my guess.

I would probably just use 'unless'.

- Luke

In reply to Re: triple negation - an idiom? by blindluke
in thread triple negation - an idiom? by morgon

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