cynicSOB, what would be the required countermeasure for a staking coin? decrease the maximum coin age?

These changes made BC less like Peercoin and more like Nxt (possibly, exactly the same as Nxt. What are the chances.. Cheesy

) .

Improvements on their proof of stake algorithm by blackcoin: http://www.blackcoin.co/blackcoin-pos-protocol-v2-whitepaper.pdf Any relevance to Nxt?

They removed "age" and their PoS is very similar* to Nxt PoS now.

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* - I would say "exactly the same" but some details r not clear.

That only Blackcoin developers made security patches and changes to "POS System (PoS2.0)" to fix problems.

The funny thing is that Blackcoin changes in PoS system led to the scheme that has been used in Nxt since day 1. Cheesy