I got a moderator flag saying, "Possible vandalism of own posts; multiple deletions in a short time"; the user is one of my stronger users.
The deleted answers are all over a month old. The flag indicates 5 deleted answers, but there are a total of 8 questions deleted for the user. All the posts are unvoted, so I know it's fair for the user to delete their own answers, but I feel conflicted.
All the posts that were deleted were, IMO, rather good answers. They were large and rather lengthy answers as well, so they really did help contribute to the site.
What am I supposed to do in this situation? Is it fair to send them a system message and ask what's up, or should I comment one of their existing posts? Should I just "continue to monitor"?