In some circumstances, answers get replaced with a message saying (example for high rep users)
This answer was marked as spam or rude or abusive and is therefore not shown - you can see the revision history for details.
locked by Community♦ Feb 12 at 1:00
deleted as spam or offensive Feb 12 at 1:00
However, this answer (also only available for high rep users) was flagged with "Rude and abusive", the flag was regarded as helpful, and the answer was deleted by a diamond mod (not Community), but hasn't had its text replaced.
What's the difference between the two moderation actions? Was the former automatic as a result of receiving a lot of flags, or is there some "nuke the answer" switch a diamond mod can use against an answer, which was used against the former but not against the latter?