@Enrique the main problem you seem to be having is that you are not aware that there is a frontend and a backend to NodeBB. You have to wire up the controls from the ACP and make a call to the backend (via websocket, for example), and then you can call server side libraries.
I have installed a google analytics plugin 0.5.11 version in my nodebb (Nodebb version: 1.11.2) community at local, but not getting user related data in google analytics.
I am only getting topic-related data in google analytics. Do we get users' data too in it ?. For instance, which user views the topic most ?. LIst of user emails or user name like .