Fanon refers to the invention of facts or situations represented in fan fiction, and is in no way canonical at all. At the present time, on Young Justice Wiki, fanon is prohibited. If fanon content is created on the wiki, it will be classified as vandalism, and there will be repercussions for the culprit.
Want to make fanon? Edit
If a user wishes to create fanon, visit our sister wiki: Young Justice Fanon Wiki