A Important Topic plugin for NodeBB Forums which allows admin or moderator to mark topics as important and label it.
Tested on Persona latest .
npm install nodebb-plugin-important
You can convert it to an important subject from thread tools:
And here is how it looks like in the category view, recent, popular, etc:
A navigation route is available, so you can see the most recent important threads. Just activate it in ACP -> General -> Navigation: