disclaimer: all this is how i understood the proposal. its not necessarily 100% correct. i might have gotten something wrong.
explain more 4 da stoopid
speed and scalability = good
what is = the bad?
the community has not decided on a distribution method for fnxt yet. the most likely scenario is a 1:1 fnxt to nxt distribution. there have been arguments made that nxt as a childchain will lose at least half its value with unknown consequences for asset issuers and asset holders. asset holders funds are locked in an illiquid market, so they will end up with less fnxt. there are arguments beeing made that this is unfair, as those who used the platform and tried to make it flourish will get less than those who just hold.
there are also people who say nxt as a childchain will die, because the platform will be filled with business childchains and nobody is going to pay the fnxt for the nxt childchain blocks (see bottom for explaination). in that case your current versatile nxt token is lost and you end with a token that is only used for forging.
there are some more arguments against it being made, i can't sum them all up. there is a very long thread over at the nxtform:
https://nxtforum.org/core-development-discussion/nxt-2-0-design/network model
Does this mean that btcd and vrc staking coins can contribute to the mother chain while staking their own chain?+
Would this allow all to stake all?
no. btcd and vrc are not nxt childchains.
Anyone can now fork-in to the superNET?
i dont understand. supernet is a seperate project, its not part of the nxt core.
business model
Crypto creator needs to buy (f)nxt to pay for the creation of an asset?
assets are created on childchains. you need to pay with childchain tokens (for example nxt) to issue an asset. fnxt is the forging token on the motherchain. fnxt is used to secure the motherchain and all childchains via PoS. forgers on the motherchain will receive fees for that in fnxt.
while all transaction fees on the childchain are paid in childchain tokens, fees for a block to be included in the motherchain have to be paid in fnxt. those fees will be paid by someone, e.g. a childchain forger or childchain creator (e.g. like a business)
What is nxt used to pay for?
its the token on the nxt childchain. you can buy assets, buy stuff on the marketplace, write messages etc.
Can we get a clear picture on the business model for (f)nxt and nxt?
Which is the one used for transaction fee?
the current nxt chain is split into a mother chain and a child chain. a market will emerge where they can be freely traded. nxt will remain a token. fnxt will be used ONLY for forging. fnxt can't do anything other than forge and beeing transfered from one account to another at very high fees, since transactions on the motherchain can't be pruned away and therefor need to be rare.