In the rich text editor:
@LittleBlackRoses
In a comment:
[LittleBlackRoses](https://www.worldofgaia.org/user/LittleBlackRoses)
For Names and Avatars:
In the rich text editor:
%LittleBlackRoses
In a comment:
[](https://www.worldofgaia.org/user/LittleBlackRoses) [LittleBlackRoses](https://www.worldofgaia.org/user/LittleBlackRoses)