No, I agree, that's why I even though I contributed a couple songs to the GAF catalog effort, I probably won't jump in to catalog songs myself. There are so many more ways to build up songs now with street pass and daily albums on sale at TIY, that I'll just collect them over time.
Also, regarding the duping tricks, it really shows how greedy other communities have been with their stuff. I understand getting something in return for things you can't order like the 7-11 set, but if your main concern is disrupting values in some "economy" there's something wrong.