Yes we do, because this may help reveal wallets that we are unaware of or coins that shouldn't exist. Ever since my Cryptsy 42 deposit tripled itself, I can't help but wonder about all the possibilities and implications of such events.
Your cryptsy balance and the balance of your 42 wallet are independent. The date of 1/21/2014 on your screenshot coincides with many balance and account problems at cryptsy. That was about the time they instituted the self-audit feature, which they ended pretty quickly too, probably because of overuse.
I made 3 cryptsy accounts because of bugs there. I keep them on a rotation. When one stops working (all trades produce an error), I make an internal transfer to the next one in the rotation and trade from that. Then I file a support ticket.
I've had negative balances that I cleared but didn't correct the account, trade balances that didn't appear for hours, deposits that took days, the list goes on at cryptsy.*
In short
cryptsy account ≠ 42 wallet.
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*That said, they do improve over time and problems at cryptsy never cost me money, so I have confidence trading there.