I think POS better than POW.
It's not about POS vs POW. Nem can still be 100% POW. The mining mechanism can be used to distribute 50% of Nem. Mining mechanism can be anything and could have no relation to Nem internal POS protocol. The purpose would be to distribution Nem -- much wider distribution and attract new audience (the mining community).
Everyone will benefit for wider distribution. 100% of coins controlled by 3000 accounts (80% of the sockets) will do more damage than good.
Make it 50% to stakeholders
and distribute 50% by some kind of mining competition
You seem to be the next person following Mr. 2Kool2skew trying to sabotage NEM fundraising with this kind of 80% socket bullshit. It is well established that there are at least 1500 unique accounts in the NEM stakeholder list.