There is no "profit" in forging because merely forging adds no value.
Completely disagree! Only secure system'll be popular and for that forging'd be popular activity too, here works network effect: more independent forgers with their own goals, more secure system is for everybody else. So it adds value in security aspect of payment system and whole ecosystem.
Selfish miners (those who mine only to earn fees) should be "removed" from the system, they r not interested in success of Nxt and only want to cash-out.
"Selfish"? It like a communist's word. Selfish is the nature of human being. It's not a bad thing.
Agreed. And Nxt solves great problem: forgers selfishness won't bring so powerful arms race as exists in PoW-cryptos. Cos, especially if decentalized Internet'll rise up, end-user don't need infinite bandwith of node. Any imaginable system'll have boundaries of demand (and spam already prevented by minfees) and forgers after achieving it'll compete only in reputational field, which is not only normal, but wished too.
In passive forging, you lease your forging power to another node. You will not have to run your own node to collect transaction fees.
Mgm, in my point of vie it can only strengthen up active forging, cos there'll be a possibility for each forger to increase his own power (which'll not increase EV, but'll decrease dispersion), and with that to ensure landlords the safety of their coins from being stolen.