Someone had the same bug. You need to go to your user settings, and "save" them again (without changing anything).
This should correctly register the email authentication setting.

it used to be a thing but its been removed so the tags are useless

Unless elo gets looked into for dishonest advertising practices, it'll likely be there until the dev stops paying,

The Site

Severed Steel Promotion

Searching for games by their tags

Requesting Leaderboard Moderation Through Support Hub Not Working

Kups

Pear

Gaming_64

Amnesia: Justine

Jazzpunk

Outlast

Alien: Isolation

SOMA

Overwatch

A Hat in Time

Tales of Escape

Ghostrunner Demo

Alien: Isolation Category Extensions

Sign of Silence

High Entropy: Challenges

Hitman: World of Assassination

Hitman WoA: Category Extensions

Teamfight Manager

Loop Hero

Veneficium

Toy Soldiers

HASTE: Broken Worlds

Default Group