Honestly, I'm gonna have to say you provoked him. Instead of telling him to stop, you proceeded to say "Anything else?" and other responses which is safe to assume that you allowed the user to continue flaming you in order for you to make this report. Looking at the severity of the flaming, however I believe atleast a 12 Hour Mute should be issued because that is not how a Staff member or anyone in the community should be treated. To compensate the severity of the flame as well as being provoked, I believe its best to meet in the middle.