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I think the success rate for Dapps launched on the actual Steem blockchain is higher than the Dapps marketed on Steemit, but not built on the Steem blockchain.

Having said that, there is also a weariness of supporting Dapps that are only planning on using Steem for marketing purposes, and the community generally prefers Dapps built on the Steem blockchain, and ones that are built in a way that contributes to the Steem blockchain.

Any decentralized network with data flowing through its vessels would benefit from this development. So, STEEM community does stand to benefit.