Post History

I wonder if segregating content that was imported *and not further improved* would help.  Create a new category, maybe called "Archive", and move there any post that hasn't had any modifications post-import.  This means those of us who want to preserve our bodies of work can, but people visiting the Q&A category (the default) will see locally-active content only.

Posts in the archive can be improved; they wouldn't be locked.  I'm proposing this as a way to separate content, not lock anything down.  We could then move improved posts back to Q&A.  The idea is that Q&A would represent "stuff that happened here", and imported posts would remain available.  Longer-term we can then discuss whether we should do any pruning of the imports.

Would this help?