That comment about people joining in on a debate was a reference to the definition of a 'duelist'. For this particular argument, it started off with little broad appeal, and dropped from there.
I don't mind trying to explain my position a couple times. If that process eliminates misunderstandings or gets a point across (as in understanding, not necessarily agreement), then great, that is the purpose of forming an argument; if not, then it still clarifies things.