In the rich text editor:
@alecdiaz
In a comment:
[alecdiaz](https://chowlings.com/user/alecdiaz)
For Names and Avatars:
In the rich text editor:
%alecdiaz
In a comment:
[![alecdiaz's Avatar](https://chowlings.com/images/avatars/1214.png?v=1675081589)](https://chowlings.com/user/alecdiaz) [alecdiaz](https://chowlings.com/user/alecdiaz)