I'm going to answer my own question.
I have found the NodeBB Featured Threads plugin.
With this one I can stack the posts I like to show.
I thought, by default it should notify when someone replies to a post initiated by me.
Just found NodeBB doesn't even have email alerts
here https://community.nodebb.org/topic/1835/nodebb-is-better-discourse-is-better
You can enable it in your settings
@askar said:
Just found NodeBB doesn't even have email alerts
here https://community.nodebb.org/topic/1835/nodebb-is-better-discourse-is-better
This post is quite dated...