Hey, Sakaros! So uh, I've been thinking about the usage of fair use images in the Wiki. I think that the lastest image I uploaded classifies under fair use, but I'm not sure. I've already uploaded the image. What can I do?! I'm worried.
Must have crossed paths; I just left you a message here.
Each user has to decide for himself whether an image counts as Fair Use, applying the four-factor test described (and linked) in the tutorial. That said, whatever licensing you choose, your image has to comply with the other Image Policy requirements too.