I'm a little confused, what is the incentive for Alice to use the Echo Chamber for her post rather than just posting herself? Is it just this:

In this case, the moderators add more votes to the post using the STEEM Power delegated by the community.

If so, how is this different conceptually than any curation service that has human moderators evaluate content and give it upvotes from the SP delegated to the service?

_{Posted using Steeve, an AI-powered Steem interface}