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As to the issue of Cryptsy staking coins(if they are) I am 100% opposed...but then I don't understand people that leave high interest POS coins on exchanges anyway. Makes no sense whatsoever. Keep your coins in your own wallet and it won't be an issue.
Ofcourse they are. Quote from another high POS coin thread:
I think craptsy now staking our supercoins. Does anybody knows craptsy super wallet address?
cryptsy does stake the PoS coins they have as traiding pairs. ive had a staff member tell me they do. its not a secret. i also am getting no response from thier support team when i have asked further questions about the wallet maintenance
It's incredible, unethical, but true. Currently craptsy receives more than 90% of profits from all TEK coins. Therefore, it is beneficial for him to keep the coins in small blocks. The only way to solve the problem described above (very smart guy BTW):
People.. Just take your coins out of Cryptsys wallet for 5-10 min and then put them back to Cryptsy and open your TEK sell orders back at the same price they were opened before// It should reset coins age at Cryptsy wallet.. we will see if it helps
Guys and gals, do not keep high POS coins on exchanges!!!
Conspiracy theories

We openly tell people we stake because if we said no that would be a lie
Occasionally we stake a few blocks either by mistake (missing config option) or when the offline wallets are brought online to fill the hot wallets
In the past we have tried staking to secure the network. Such as reddcoin which had a network security problem before switching to POS. But that was short lived as the community was obviously against it.
We don't stake for profit and don't actively try to stake any coin at cryptsy right now.
We believe keeping the market alive is far more profitable than dumping on the market with coins generated by our customers deposits.
Lastly if you read my post above we currently are not staking any tek on cryptsy.
We are only actively staking one coin right now and thats because the developer requested we do as the blockchain had stalled. I tried to find the message to remember which coin but i could not find it. Ill look more later.