How do you report an argument?

BrotherDThoams has harassed me in his debate. You can report a debate,but not an argument, so how can I show the mods the abuse?

If you feel someone is violating the COC in their arguments, please DM the moderators directly. This thread is locked. 

You can ask questions like this, but you shouldn't use the asking of such questions to call out other users at the same time.