I received a warning for uploading an inappropriate photo.

You received this warning because you uploaded a photo that
other users reported. When you upload a photo, you agree to abide by our Terms of Use. Don't spoil it for others by abusing the service. Photos that contain an inappropriate subject matter, i.e., sexually explicit, illegal or otherwise objectionable content, such as spam, advertising, links. or otherwise infringe others' material, trademarks or other intellectual property might be removed and might result in the loss of your Gnommie account.