Pinned topics/posts are useful to help new users and we use them in all the categories. Some users end up directly in "unread" or "recent" and it would be helpful if we could pin topics to those as well.
@BDHarrington7 Correct. At current, we do not associate uploaded files with a particular user, although there should be plugin hooks in place that will allow third-party plugins to maintain this association (for expiry purposes, etc).