The phrasing "Twitter alternative" is my fault in setting the title for the thread-opening post here. The "Twitter alternative" phrasing should not be attributed to the founder of Post.

I get the impression that the founder, Noam Bardin, DOESN'T think he's building a Twitter alternative but rather, in the beta welcome page's words, "a civil place to debate ideas; learn from experts, journalists, individual creators, and each other; converse freely; and have some fun. Many of today's ad-based platforms rely on capturing attention at any cost — sowing chaos in our society, amplifying the extremes, and muting the moderates. Post is designed to give the voice back to the sidelined majority; there are enough platforms for extremists, and we cannot relinquish the town square to them."

Twitter has never been quite like that. If the founder's vision succeeds, I might like Post very well indeed. In all such things, the proof is in the user experience as experienced by each user, but I think the goals sound good for Post.