These are the topics that come to my mind.

e 1) I suppose it's just a matter of time - who knows? There's no urgent need for this upgrade
re 2) the more Nu learns about the market and the effects of actions, the more rules can be defined, which can be put into algorithms and scripts. The buyback calculator is an example for that
re 3) NuLaw tries to tackle this. This project isn't on full speed
re 4) this can only change over time by offering a friendly and hopefully prospering community. Time will tell...
re 5) this is another thing that might be fixed by increased demand for NSR (through success of Nu products; bitsquare and Blocks & Chains Exchange need synthetic fiat products and might increase the demand for US-NBT)

There's still a lot to do, but that's the same for all start-ups ;)

While there's still a lot room for price development, NSR have been a solid investment for the first 1.5 years.
The product NuBits, which is pegged to USD (NBT, soon US-NBT) speaks (trading) volumes (pun intended) - which is possible through the high liquidty at close spreads (e.g. at Poloniex).
Other pegged products are on the road map: EU-NBT (pegged to EUR), CN-NBT (pegged to CNY), X-NBT (pegged to SDR).
Those together with Blocks & Chains Exchange will increase the utility of pegged crypto currencies offered by Nu.

In the last 1.5 years, Nu could show that it's capable of offering stable, pegged, liquid crypto currencies, which are issued by a decentralized, distributed corporation that acts similar to a central bak without being prone to the drawbacks of the central banks we know (who just try to act in the interest of the land/region in which the central bak is).
Nu makes products and tries to please customers. From satisified customers, Nu can make a gain, by offering services that are appreciated.

One quick overview of important achievments can be found here or for convenience copied here:

provided stable wallets for Windows, Linux and MacOS from the start
formed a formidable community with lots of talented and committed contributors
increased decentralization in may areas, e.g.:
transition (from centralized) to fully decentralized liquidity providing with NuLagoon as an MLP and several ALPs (formerly known as TLLP)
tier 4/6 liquidity to be moved to multi signature custodian group
had nubitsj created (Java implementation of the Nubits protocol)
had NuDroid created to provide a mobile phone app that allows storing NBT while paying with different crypto coins (thanks to shapeshift.io) - in addition to the coinomi wallet
created NSR grants
made tx fee dynamic
got listed to several high profile exchanges
handled 24h trading volume of above 1 million USD without losing the peg
proved that we can transfer the balances of a production blockchain into another production blockchain (is a way to shrink a bloated Nu blockchain if necessary)
proved how impressively effective motions are to achieve consensus
proof of concept for seeded auctions to link NBT directly to NSR in an ongoing process
achieved a nice price-profit ratio of roughly 24% thanks to PPC and BKS dividends
integrated data feeds to be able to delegate the voting behaviour to a data feed provider

NuShares are a governance tool. Therefore, while they also represent a store of wealth and can be transacted as a commodity just like bitcoin, they also bestow power upon their holder. NuShares grant the owner a say over the Nu network, from nuances like interest rates to grand arching motions that decide the future of the project.

The price and marketcap are very low. The price is almost down to the IPO price and the marketcap is under $2mil. This means that purchasing a significant portion of the network (like 0.1% for $2k) is practical for many investors.

The community is active. There are upcoming developments, such as B&C decentralized exchange that will use NBT as its fiat token, that will be a significant boon for the network. The blockchain can pay developers directly and the community is constantly striving to evolve and achieve a better, more efficient and effective network.