Purpose is ease of use payments on the blockchain and if you patient enough they will be releasing PoW2 this year or next. Nocks payment platform is the main reason to invest in gulden. Would like to see coins like GRS and XMR on Nocks.
For other coins GuldenTrader is working on an exchange. Nocks will add USD and GBP currencies and markets soon. I estimate both GT and Nocks live end March.
The community need to cut the developers some slack, focus on the good that we know is coming soon. Nocks USD and GBP and Guldentrader exchange that will add other crypto pairings to NLG.
Pretend PoW2 and SegSig project doesn't exist and you will see Gulden is still a good coin.
It says on the developer roadmap that SegSig is Feb 2018 , this is only 2 weeks away until Feb over. It does not give a date for PoW2 but PoW2 is listed before SegSig on the roadmap?
PoW2 is the one for witnessing?
https://dev.gulden.com
The date has changed every month for 6 months.