Arc System Works recently published guidelines for fan created content. A fairly standard practice, especially among Japanese companies. Except for one detail, which is that the Japanese version of said guidelines was surprisingly strict and implied serious consequences for anyone making NSFW art of ASW characters.
Some artists immediately responded by saying they will no longer draw Guilty Gear fan art in general, or at the very least move away from anything more explicit, since the guidelines weren't clear on what is too much. An important detail when dealing with games that already have fairly titillitating designs like that of Baiken or Makoto.
Thankfully, Arc System Works reacted rather quickly and updated the guidelines by making them more closely resemble ones posted in English.

