To be honest, the only one of these 5 that I had even heard of, was Mirror.xyz. I tried it out, and it seems to be an interesting concept, but has zero staying power imo.
Hive could also very easily create a formal publishing platform like a Substack, as @Khal has mentioned, where you could paywall content behind $HIVE, $HBD, $LEO or any Hive-Engine Layer-2 token, making any and all other platforms outside of Hive, relatively useless.
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