One of the rules of textcasting is that the writer must be able to edit their posts. An almost universal response is the way Twitter used to explain their not having editable posts — then people who commented might have said something that seems foolish. I have a couple of rebuttals to that. 1. Then don’t comment on what the author said, instead write what you know or believe, so it would make sense even if the author changed their post. This is a good practice anyway, instead of saying people are wrong, just state your belief. It’s a lot easier for people to listen to, and by the way the other person might be right. 2. A counter-example — Facebook. They let authors edit their posts and comments. And somehow it keeps working more or less. Their software does add a note that the text has been edited, and I think they even have a way for you to see the changes, but who bothers. Comments are usually simple “you go girl” or “my brother” or “I’m great!” or “check out my site.” #