The DS Scene has been mired in chaos since its inception. One of the main reasons is that it's taken a very long time for a standardized viable piracy solution to appear, so there has been no real standard for releasing or way of testing releases.
After that followed a long period of releases from Golden Sun Team, encrypted and usable only on NeoFlash. Once the NDS Rom Dumper tool appeared, all the releases from Golden Sun Team were universally nuked.
A good part of the groups in the DS scene are either not real groups from the scene, or they are Joke Groups put together by members from other groups.