I haven't seen any childish antics from you. You are a worthy addition to the discussions.
It is funny how some obviously get their jollies by being contrary and then battling to the death.... back and forth... back and forth.... defending their ... defending their... usually after about 2 or three back and forths I tend to forget, as do they, what it is they are defending.
It seems like every forum I frequent has at least one that takes this position. And I think you are right - it doesn't add much of anything to the discussion. They ought to just do personal e-mails back and forth.