It can be really risky "liking" editable posts without transparent edit history.
I think I like how it's possible to go through history of edited posts on Facebook for this reason. You could replicate this on decentralized platforms or social media by having immutable and transparent edited post history
Wrote this👇 about immutablity:
Immutablity does not prevent you from changing something of "historic value"
https://bitcointalk.org/index.php?topic=5270395.msg55037915#msg55037915It's about shared things though, (like things public are stakeholders in) .
I don't think you really need consensus to edit your post, especially as a non-public person.