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