Inspired by this meta post on RPG.SE: I think we should keep in mind that posts with lots of "Edit:" and "Update:" sections are a bit hard to read from beginning to end, and we should strive to avoid this style (which I'm certainly guilty of using from time to time).
Yes, sometimes we need to change what we've written. But the revision history for the post contains all past versions in case anyone is curious. And most future visitors probably aren't interested in the full history of how a great question or answer got to where it is.
So this is a call for us all to try to make smooth-flowing posts whenever we edit new information into them.
Also, if editing another post for whatever reason, editors should feel free to incorporate updates smoothly into the post. (This last bit might be a bit more controversial here on Physics, where it seems most of us are loath to edit others' posts.)
Is this a good idea? Am I missing some reason why physics posts should read like revision histories?