[Jambe]

Where is the ethical point at which to drop out of the discussion

If the person doesn't get the point after your 2nd response - their probably NOT a FREEPER! More likely it's a DU lurker!!

[CyberAnt]

And ... you don't have to have the last word. Sometimes it's just better to exit the topic and leave the person stewing in their own juice. Sometimes people are so set in their distortion of things that facts simply confuse them.

And ... I don't think there is any moral or otherwise requirement about responding. We are all here voluntarily! If you don't like a response - you can reply or ignore it. If it's over the top - you can report it. Otherwise, it should be everybody's choice to respond or not.

[antaresequity]

If the person doesn't get the point after your 2nd response - their probably NOT a FREEPER! More likely it's a DU lurker!!

I don't understand. Can you be more specific?