> Posting a question in multiple forums enhances the scope of getting answers from more repliers,
Or wastes everyone's time with simple questions that are trivially answered.

My reply wasn't aimed at you, it was for the regulars to consider whether it would be worth investing any of their VALUABLE time in answering your question, by quickly checking whether it's already been answered elsewhere.

This on the other hand is for YOU.
http://www.catb.org/esr/faqs/smart-questions.html#forum
http://www.catb.org/esr/faqs/smart-q...ns.html#urgent
So while you're busy abusing a free and finite resource, if multiple people answer your question in the same way on multiple sites, by definition of a finite resource (our time), someone else doesn't get an answer.