The main disadvantages it has vs. Scuttlebutt are: There are not yet any good systems to prevent abuse on public relays. There is no way to block or hide abusive accounts or posts in most apps, there is no standard way to report abusive accounts to relay owners, there are no blocklists being shared by relay owners, etc. There is not yet any good solution to preventing spam on the network. The leading idea so far is adding a proof-of-work cost to publish a message, which is isn’t a great solution imo.
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