Currently CM can only comment directly on the activity being processed.

It should be able to comment or make a submission to an arbitrary parent activity or subreddit. This would allow moderators another way to keep an "audit trail" of activities actioned. Some scenarios this could be used for:

• posting submission to a private subreddit on actioned event -- private sub shared by moderators
• posting comment to a (config) hardcoded submission that is subscribed to by moderators

More than a few mods would like to have modmail-like notification abilities for CM but since that won't be available in the API anytime soon (or ever) this could be an alternative since it would still be reddit-based.

This could also have useful for non-moderators (usage) as CM could post to special sticked submissions based on subreddit-wide activity...