Originally Posted by shakran

plus the fact that "in my opinion" does not apply to many arguments.

"In my opinion the Iraq war was started on false pretenses" not only is not true (it WAS started on false pretenses. Opinions have nothing to do with it. We don't say "In my opinion the sky is blue" because it IS blue. Opinion on sky color is irrelevant) but it destroys the strength of an argument.

In the above example, the false pretenses alegation is a FACT. Now, i should have to back up my claims when I say something is fact, but I should not have to turn that real fact into fake opinion.