**Background**:
Based on the research and work of the Editing team, new users that have traditionally used Talk Pages with VisualEditor have a growing expectation to use @ to mention and ping other users. The Android app currently uses [[User:Username]], or {{ping|Username}} as the only way to mention a user on a talk page.
**The Task:**
[] Allow users to use @ Mention to ping a user. T299182
**Nice to Have**
[] When pressing reply to existing thread, auto populate username of most recent commenter in comment field
**Reference**
Use the interaction represented in the [[ https://docs.google.com/presentation/d/1EiwX5uYMk6gJ7iolXMaMoQRHIV2-KCnZpY8j67ykh_U/edit#slide=id.g10715607a6a_0_4 | Editing Team's deck ]] on slide 16.
**Designs** (tbd with engineer on Jan 4, 2022)
https://www.figma.com/file/LhcZQVCPJYCAV7WtngiXfD/Talk-pages-%40mention?node-id=1%3A4