there is no harm to your account. all that the "data mining" does is reading a json file that gets sent when you start a scene.
from there it looks up where the assets (images, sound) are stored, which isnt even on nutaku servers i think, and downloads them so the program can play them back
worst thing to happen would be that they block unauthorized access to the data, which i doubt they really care about as they havent been doing anything regarding this so far. for the server its probably just the same as when starting a scene. it receives a request to access the necessary files, just that we are downloading them instead of just watching