Steem is a cryptocurrency that rewards users for community building by posting and upvoting valuable content for others. Steem was inspired from the success of Reddit where the community helped enrich the shareholders. Steem aims to help distribute the rewards to the community members who help create the community in the first place. Steem aims to provide various services to its members such as a source of curated news, Q&A, job boards etc. The founders of Steem came from BitShares with Dan Larimer involved as well. Steem’s main platform, called Steemit, is a social media network built on top of the Steem blockchain. Steemit is similar to popular content-driven social networks like Reddit and Medium, but it rewards users with cryptocurrency for their participation. Fundamentally, the more value a particular piece of content provides to a greater number of people, the more the individuals responsible for creating and curating that content can earn. Users cast votes, creating a hierarchy of content. The more upvotes a post gets, the more it will earn. The platform also allows for downvotes, giving participants more flexibility when it comes to rating content. Steemit is meritocratic, meaning users that hold more currency can cast votes with greater influence. The Steemit community even has another service to offer to its customers. D.tube, which is considered to be very similar to YouTube, is Blockchain based and the users can realize the difference between the traditional video publishing websites and D.tube, as the amount of money earned is also displayed beside the post apart from likes shares and comments. The Steemit community is accused of posting plagiarize contents on their publishing website. The irony seems to be reaching highest levels when the original content doesn’t receive much appreciation and income than the copied versions of it.'
EtherZero, abbreviated ETZ, is a hard fork on ethereum providing no-fee, high expansibility, real-time transaction or operation feedback services. Aiming to be a general-purpose smart contract platform, ETZ helps developers set up DAPPs that not limited in finance and business scope, but those more frequently used in daily life, to popularize decentralized services to more people and industries. ETZ eliminates the gas fee system from Ethereum network core and adds a Transaction Restriction Policy Protocol layer that associates the threshold, frequency, depth, etc. of initiating transactions with the account balance to combat DDOS like attacks. In particular, ETZ also draws on DASH's two-tier network architecture built with Masternodes transaction verification network and blockchain ledger layer, and its built-in community autonomous system to provide users with real-time operation feedback and high transaction concurrency, no longer need to wait for a long transaction confirmation time. ETZ picks the proven experience of Ethereum on smart contracts, removes its less scalability gas-based fee system and designs a fully accountable trading limit and security strategy against DDOS Class attacks. The final two-tier network composed of the main node and pow consensus layer laid the foundation to achieve free of charge, high concurrency, real-time transactions, independent evolution and several other features. What does no-fee mean to DApp Dev? Taking a simple Todolist DApp as an example, its decentralized implementation can be applied to the team task decomposition process, which requires all participants in the project to know the tasks of other members. Each task is a team consensus result with demand of traceability. The application involves registration of members, additions, deletions and alterations of tasks. According to Ethereum development requirements, all of these operations require gas consumption, which is clearly unreasonable for the users of the application. While in EtherZero, the transaction initiation frequency and the execution depth of smart contracts will be positively related to the balance possessed by the account. This mechanism is similar to POS, it takes into account the fair use of bandwidth and set a relatively high capital threshold required to launch a DDOS attack by malicious attackers while providing free services. This kind of limited and cost-effective free mechanism will spread the decentralized application into the scene of life.