Nxt is very close but has the following downsides:
1) more missed blocks
2) no dividends to share holders
3) slower block production
4) random individuals can manipulate the transactions with ease... nothing on the line when their turn comes up.
5) more centralized, only those who choose to participate can exercise their shareholder influence
- you must risk your public keys by having your wallet unlocked
- gaining 51% of the active stake is much easier with Nxt because so much is inactive.
This info is a little bit outdated. For example, u don't have to risk ur private keys coz u can delegate ur mining power to an empty account -
https://nxtforum.org/news-and-announcements/nrs-releases/msg8982/#msg8982. The last point about gaining 51% will become irrelevant after people run pools and small fish delegate their power to professional miners.
Also, what does "more missed blocks" mean? If it's about the bug that didn't allow to sign blocks then it's already fixed. Slower block production - 1 min between blocks doesn't look slow. Transaction manipulation - I don't get it, do u mean that miners may refuse to include some transactions? If yes, then it's not a problem IMO, Bitcoin miners include even non-prioritized transactions with 0 fee, why Nxt miners will do opposite?
Thanks for the update... looks like Nxt has solved the major issues by using a variation on delegated proof of stake. I have a lot of respect for what Nxt is doing and for getting there faster than everyone else.
1 minute vs 15 or 30 second blocks... is slower, but I suspect Nxt could accelerate that too if they felt it would be helpful.
So from where I sit the primary difference between Nxt and DPOS is that with DPOS you can vote against block producers rather than just delegate to block producers. Is there any place I can go to read in detail about Nxts current implementation?