That is YOUR reply I quoted.

You must have read the answer at one point, because YOU commented that your question was answered, but I will summarize it again here just to be perfectly clear.

• Blackcoin use POS 0.3.0 protocol which has no known vulnerabilities at this time
• The "attack" suggested is impossible because coins do not stake on age alone, therefore making deposits at small intervals in no way guarantees you will generate POS blocks at those intervals.  In fact splitting coins to generate these intervals will make the chance of staking at each interval even less