Detect edits to posts?

[tdmalone]

Currently, if you send eg.

@tim is awesome

and then edit it to read:

@tim++ is awesome

it will not be picked up. You'd have to write the latter as a new post.

It'd be nice to pick this up automatically.

But... would it be feasible? We'd need some sort of state management to avoid reacting again if the message was edited again.

Also, if someone edits a message to remove an action, should we undo it?