No, I assure you sane conclusions can be reached with these discussions...
It's just another conversation style, I don't need to hear the end of your sentence to know the point you are making, at a certain point the end of the sentence is likely fluff. If the end is important, I'll still hear it, and if it changes what my response is, I'll probably stop and react mid-stream.
But it's hard to imagine you ever reached any sane conclusion to these discussions?
It just seems like a bunch of primates expressing their feelings, opinions and tribal affiliations, but not a way to make good decisions.
Or am I missing the point?