please can we have a feature called "undig" where we can 'undig' what we have dug ourselves into.....I appreciate that there might be other responses to such text, in which case it might also need th permission of the others.......it might not always require removing of posts....just editing (I realise this could lead to cheating in arguments......but this can be monitored)

Youtube has an edit comments feature.
would it be possible in here?