Ref: https://www.mediawiki.org/wiki/Trust_and_Safety_Product/Temporary_Accounts/For_developers

Effected tools:

• XTools (T365507)
• CopyPatrol (?)
• Who-Wrote-That / WikiWho (?)
• WS Export – currently checks XFF against the Meta blocklist to prevent automated abuse and web crawlers. I'm not sure if this will continue to work without authenticating with an account that can view IPs