==== Problem
Opting out requires significant effort from the user.
==== The necessary steps
1. Click (1) link on sidebar
1. Network request: load "Preferences" ("User profile" tab)
1. Network request: load "Appearance" tab
1. Find "Skin preferences" section in the middle of the page
1. Click (2) the checkbox
1. Find and click (3) "Save" button
1. Network request: reload "Preferences"
1. Return to wiki page:
* Press back button (load "Appearance" tab), press back button again (load wiki page).
* Or: enter page title in Search.
* Or: click "Main Page"/other nav link in sidebar, assuming that's where the user came from.
==== Options
1. Can we load the "Appearance" tab in the first request?
1. Scrolling to and/or highlighting the "Use Legacy Vector" option.
1. A common and convenient solution is to change the preference immediately when clicking the opt-out link/button, without the journey through "Preferences". Should we consider taking that path?