What do you think on moons today?

Hey! A few months ago reddit had caught my attention by introducing community points. Looks like it works way better than steemit or hive social media. Focus on an internal economy designing and restricting from a convenient external usage actually does its job. But I'm wondering what redditors think about it after more than a year of interacting. Here are a few more broad questions:

What are your thoughts on moons as an incentivization system?

Can it replace karma?

Would you better prefer easily exchangeable community currency or you are willing to hold it till the community will get real value?

What's your prediction for a future external/internal economy of the moons and other community points currency?