User blog comment:DaNASCAT/Technical Update: February 13, 2017/@comment-452-20170215173619/@comment--20170216173532

The variable in question is $wgEnableTopListsExt, not the one previously mentioned in this thread. I have followed up with 452 via email.

I will also mention that Fandom did additional communication with our users regarding this sunset, including the Forum post 452 quoted and mentioning this in the Technical Updates in the two proceeding updates to the removal.