Flame wars - where one posts rude or ugly comments, another retaliates with the same, others dogpile on with personal attacks on the the "flamers", etc., ad nauseum... and I agree, we live by the Golden Rule here, and those who don't aren't invited to stay long... quite unique on the 'Net, IMO...

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Plug me into somethin'

If the theory does not conform to the facts, then the facts must be discarded.

No good deed ever goes unpunished

Never argue with an idiot. He'll drag you down to his level, & beat you with experience.