hi fareesh, as with real-life, you can't take back what you said, you can only apologize (in a new post). :)

there's talk of moving message content out of the sigchain so you could "delete" (ask your peers to delete) a post: %QJEpN8LN1t3BrIkUQ3WoOMWRsMArbVUZCpTeBYcuqfw=.sha256