I think I like the way Cryptocurrency already is. It is not necessary for cryptocurrency to compete with traditional financial system by changing its nature. Fiat is centralized and crypto would always be decentralized.

Considering the bearish condition of the market, it will be safe to stick to the traditional investment. A lot of investors are panicking now and a lot of projects are turning into failure. On the other hand the traditional method focuses on coins with most stability that can survive even this kind of bearish market.

Well so far the NELUNS ICO just finished a some time back and the fact the social media account is still up and running, the admin on telegram is still responding to questions from the investors so, I don't think it's a scam I'd advise waiting because they might give off that suspicious vibe but they still seem like a potentially good ICO. Hopefully waiting a bit will show you the results you're looking for.

You should just follow the instructions given in the sites. Cause taking help in public for such delicate matters would be harmful. There are many documents and articles about it you can search and study.

As the upgrade has been made recently, it will take some time to see a project with ERC223. And there should be wallets that supports the new upgrade. You can search it up on google as the site will be able to provide you with the list of wallets that supports ERC223.

There are people whose believe in Bitcoin reaches the radical level. They believe that any coin apart from Bitcoin is a scam and they will disappear in the long run. These people are Bitcoin maximalists. Some even go to the extent to say that the Bitcoin will take over all kind of fiat currency and soon only the Bitcoin will reign.