Hello all. I used NationStates by some months, and I must premise it's a beautiful game.
Anyway IMO it's a bit annoying after some time, because issues you have already done can be re-proposed. I don't say they must not be re-proposed ever, but priority should be give to new issues. If all issues are done the old ones can be re-proposed.
Another big problem is taxes. You can approve laws that requires funds without cutting anything other, even if you tax rate is 100%! Furthermore I suspect you can choose to cut funds to sector with 0 money. If the rise of taxes will be above 100%, the issue should cut the more expensive sector(s), and this should be written in the issue. Obviously the sector must considered "bad" by the law proposer.
Lastly, I experienced a lack of info about the states. If you have a nation with less than 2 billions of people, it's not much revealing knowing you are 6,000th or 10,000th in some sector. Real nations have national accounts, that can be of some sense (like ISEW) or no useful at all (GDP ). The introduction of these accounts can be also triggered by issues, and the precision of info should depend by politicaly freedom (dictators don't let you know the state is going bad).
My cents.