I created that sample thread I linked for a reason. Sure, finding samples is 'easy'. Finding quality samples- not so much. They're often stashed away in huge collections, especially if you're looking for specific stuff.
I see no reason why someone would have to do research/work that has been done before, over and over. One huge benefit of communities is that one can profit from the knowledge and discoveries of other members with similar interests. Free knowledge exchange is what fuels progress.