User blog comment:Rappy 4187/Technical Update: September 21, 2016/@comment-5558012-20160921203809

While not very technical or may not matter to many, just wanted to publicly note Wikia killed the ParentPages project (probably not something they'd note worth mentioning) and Fandom is indirectly responsible in its global deletion. While individual wikis still have them, the help page, directory, and FAQ no longer exist for wikis that might have been interested in creating one for their wiki.

Since I spent quite a bit of time and energy creating one, I just felt that everyone else that did so too should know. I'm most disappointed Wikia deleted the directory as that was quite useful to see what wikis took on this project.