And then you go to Settings / Privacy / Data and all you find is a link to the privacy policy and terms of service.
So you search online and find several relevant posts on a support forum, such as:
I cannot find this setting
The "on" option is grayed out
I tried to set this to "on" but I got a cryptic error message saying to contact my system administrator
All of them have been open for at least a year, hundreds of users clicked the "I also have this issue" button, and none of them have any useful replies.
Just go to about:dont-grind_my-bones/39a667aa-b5c5-441c-9df9-0f75e3fc588d and configure it there. It's so straightforward and obvious that it's literally your fault if you didn't notice it.
I was looking to solve a Linux issue and the Internet said
It's simple. just use "sudo ̪͊̽͊̀̎̇̄̆̾̅̊̕͝͝p̶̗̝̬̾̃̈́́̿͜ͅa̵̹̜̅s̴̠͉̩̖̣̹̞͇̰̻̦͛͂̽̈̅̒͗̉͋͘͝ṡ̵̺̮̫̲̙̙̹̻̹͉͎̣͌͆̔̐̓̊̽́̌̂̓̚̚̚ͅw̸̮̠̪̤̏̍͛̔̚o̶̡̫̟͖͎̣̫̹̰͕̰̝̻͎̽͛͛̃͒͂̆̋̂͜͠r̵͖̯̭̮͗͒̍̅̆͊̕͜͜͝͝d̷̛̛͖̮͍͉̣̙̀̐͂͌͊͌̃̌͂͑́̚͠ ̵̛̱̲̳̫̳̫̟͉͙̎̽̑̈́͌̎̑̀̒̕ͅ1̸̯͍͓̝̦̦̖͖͉͎̪̬̹̝̏͛́͋͗̒̓̇̾̄̍͠1̵̱̭̰̥̹̟̰̲̙͗̽̆́̀̐2̴̹̯̼̲͎̯͈̈́͠͠2̷̰̤̖͓̫͈̅̑́̂͋̈́̎̀̿͐̿̑͠3̴̫̩̫̻̕7̷͎̫̖̦̰̫̳̭͉͎̍͆̔̈̒͑̈́̈̚͝"
My favorite is "I had to hack the website by making a userscript to access the option afforded to EU users and I have no idea if it actually affected anything"