Not something we wanted to do but for PoW to continue, and for the core upgrade it had to be done. Also we don't want to be a PoS only coin, so we decided to keep POW going. It's something we feel is good in a coin security wise and for the dedicated miners that have supported Netcoin's NETwork and because people still do mine it traditionally. That said we have continued on our PoW to a static reward of 15 coins per block and sorry to say, but the hourly 8x superblocks have been discontinued. Also PoS rewards for PIR year 3 are changed to 2-4-6-7-8-10% because with these market volumes it could never sustain the current reward settings. PIR year 4 will follow year 3's. POW is set to end block 2500000.