I have been following this discussion and I would have weighed in on the side of allowing user editing. This is based on how many non-ACS-based boards I see where people do edit their posts (and it shows that the post has been edited).
But I was looking to make a change in our system, and I stumbled on the following in the instance parameters for the bboard application: UserPostsEditableP - Grants permission to edit posts to posting user. Required for attachments to work.
Now I run ACSTcl 4.2b (I am assuming that this parm is also in OACS 4.5), but why would we not just leave it as an (administrator-changeable) parameter?
In our system it defaults to t, but it would be trivial to have it default to false. My guess is that this approach has the broadest applicability.
Regards..