Norton Forum Mods:
All of the .png images I've inserted in my posts in the Norton Community since the afternoon of 16-Oct-2014 still have an "Image in Moderation" placeholder, and several other users appear to be having the same problem.
See the later posts in waygirl's thread Norton 'maintenance' is blank, including waygirl's image here (16-Oct-2014 @ 10:19 PM) and my image here (17-Oct-2014 @ 8:41 AM) for examples.