I haven't seen this anywhere but it would be cool to be able to create and manage an outliner within nodebb topics.
I've submitted a suggestion with moo.do for nodebb integration. They're at least considering the idea. Not sure how much would go into a project like this. Hope it gains traction!
I never liked the idea of shadow ban myself, which is why I wanted to make it a plugin and not core. And even the client that commissioned it had lots of problems with their users eventually finding out they were shadowbanned. The fact that they're not around now anymore may give you an idea of that.
I'd like to advise against it, it's not the best policy in the world, but if somebody would like to pay for us to upgrade it (probably 1-2 hours worth, including support for the next couple of minor versions of NodeBB) then, sure.
do you mean something like this?
No. Its invitation using emails.
I was talking about giving users a ref link like http://www.myforum.com/ref/username so that they can share it everywhere and get points for each registration under their link.
It would be great