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