The Popo posted...
I feel Ike GameFAQs says like 4 outta every 5 images I try using are invalid.
Whenever it happens, I just take a screenshot of the pic, crop it, and use that.
It shouldn't happen that often, but what I believe happens is that Gamefaqs will assign a string of characters to the image, but every so often it assigns ones that don't work or contain an offensive word (happened to me).
The reason a re-upload doesn't work is because gamefaqs saves on data by checking any new image against the existing images to make sure it's not a duplicate, and if it is a duplicate assigns it the same string of characters.
So yeah, cropping and re-uploading (or really anything that would change the byte data) should fix the problem.