yeah, so it is an absoultely secure network. However, I care about Nxt distribution right now. How will those 5% react?
Which 5%?
Those who owns ~ 5% of the total coins.
If they miss their chance to mine a block they'll be penalized. Stakeholders r supposed to protect Nxt, not just sit and wait for 1 NXT = 1,000,000 USD day.
NB: The only penalty is inability to mine blocks within some period of time. They still can decide not to bother with mining, but their "hashing" power will be distributed to those who do protect the network.