Tera is a decentralized application platform. This is akin to an operating system. Tera consists of a repository of programs and data storage integrated into the Internet. The mechanism for publishing programs and data on this platform is free from censorship. The circulatory system is the blockchain.
Moons are ERC-20 Tokens given as rewards for an individuals contributions to r/CryptoCurrency either via posts or comments etc. They can be freely transferred, tipped and spent in r/CryptoCurrency. Moons are distributed monthly using Reddit Karma as a basis for contributions. Moons can be traded freely and used for any number of purposes within the community. At this time, they can be used to display reputation within the subreddit, unlock exclusive features like badges and GIFs in comments with a Special Membership, and add weight to votes in polls.