User blog comment:P進大好きbot/Images without Copyright/@comment-3427444-20200131171829/@comment-24061664-20200201140703

There seems to be no specific rule for avatars, and therefore the rule for non-text files may apply.


 * Freely licensed or public domain images are strongly preferred on Fandom.
 * Non-text media on Fandom should not be assumed to be available under the same license as the text. Please view the media description page for details about the license of any specific media file.
 * If you are uploading files to Fandom, you should cite the source of the file, attribute the authors, and note any copyright information, where applicable. Individual communities may elaborate upon and refine requirements for file uploads.

However, as we do not have default place for a note of copyright for avatars, I am not sure what Fandom think about this issue. Anyway if you are using an image copied from somewhere, it is better to confirm the license of that site and follow the license agreement. I guess that if you are using a service which creates avatar, using the avatar on SNS is permitted.