In the rich text editor:
@NiaTheElf
In a comment:
[NiaTheElf](https://chowlings.com/user/NiaTheElf)
For Names and Avatars:
In the rich text editor:
%NiaTheElf
In a comment:
[![NiaTheElf's Avatar](https://chowlings.com/images/avatars/default.jpg)](https://chowlings.com/user/NiaTheElf) [NiaTheElf](https://chowlings.com/user/NiaTheElf)