1. Does MOON offer anything genuinely fresh to the coin scene in the long run, or just a few year long rocket ride?
So far I've seen this as a Litecoin clone with a makeshift "coins for likes" functionality that is just a poor man's version of STEEM, which I don't support either.
If an altcoin doesn't claim its rightful place in the future of cryptocurrency, it will die out. This will happen to 90% of altcoins currently on the market.
2. Does a lightweight MOON wallet even exist? I'm not going to download 20gb of blockchain junk on my computer.
1. Mooncoin is great for micro-transaction it is quick and cheep! It's been on the go since 2013 the days of the very first alt-coins! The coin isn't a scam because its been stable for a long period its just waiting for the right time but needs more investors and exposure on more exchanges.
2. Their is a light wallet (Mobile or online) on Mooncoins main page: http://mooncoin.com/#intro
I must argue with you regarding the stable value... a long mooncoin was traded at 1 satoshi an donly in ltc below 1 satoshi...