I understand that this was a join.me, but the picture isn't really related to any MMD groups. It is my suggestion that you change the picture to something MMD related. Please credit the original artist for the picture.
The point is that they used a picture owned by someone else without crediting them. No one is trying to spam or attack anyone, we are just trying to prevent violations from happening, since some people make this mistake without knowing. It helps them to be aware of the problem. I apologize for making such a ruckus and I'm positive we meant no harm to the owner of the deviation.