...
Ask yourself, if your other alts had this happen, what would the dev response have been?
...
Pos 2.0 rat4 (Blackcoin core dev) developed system to rappel such attacks or make it REALY hard to do...
But whole his idea was marginalized by VRC community as unnecessary because you don't need it...http://www.blackcoin.co/blackcoin-pos-protocol-v2-whitepaper.pdfA. Coin Age
In the PeerCoin protocol block generation is based on coin
age which is a factor that increases the weight of unspent coins
linearly over time; the proof that has to be provided together
with a new block and has to satisfy the following condition:
proofhash < coins · age
....
In short BC dev did:
CHANGES IN THE PROTOCOL
-A. Taking the Coin Age out of the equation.
-B. Changing the Stake Modifier
-C. Block Timestamp Rules
this took him months of work and few thousands lines of code
to solve your attack problems like you can suffer now
if you will read whitepaper correctly you will find solution how prevent 30%
of coins ruling whole POS network that is why he called it POS 2.0 ...
it soved in simply way one of POS problems