In the rich text editor:
@LuckyTGames
In a comment:
[LuckyTGames](https://www.whistlercrest.com/user/LuckyTGames)
For Names and Avatars:
In the rich text editor:
%LuckyTGames
In a comment:
[](https://www.whistlercrest.com/user/LuckyTGames) [LuckyTGames](https://www.whistlercrest.com/user/LuckyTGames)