In the rich text editor:
@PhoenixRemixed
In a comment:
[PhoenixRemixed](https://painted-relics.com/user/PhoenixRemixed)
For Names and Avatars:
In the rich text editor:
%PhoenixRemixed
In a comment:
[](https://painted-relics.com/user/PhoenixRemixed) [PhoenixRemixed](https://painted-relics.com/user/PhoenixRemixed)