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Answers and rating deltas for

How to create an argument that is optional?

Author Votes Δ
twil 6 +4.24
torek 2 +0.03
jfs 2 +0.15
Engineero 0 -2.74
ivan_pozdeev 0 -2.93
Last visited: Sep 14, 2014, 5:07:29 AM