Tons of ghost upload traffic shown in mini dashboard

Look at below information copied from my mini, huge upload traffic in the last 3 days! I definitely didn't use that much of upload from myself, and I disabled all tunnel sharing in mini. How come there were still so much upload traffic?

System Info

System Up-time 3d0h27m
Total of Uploads 14.3 GB
Total of Downloads 38.4 GB

maison No streaming? No hidden services in your computer? Backup?

Anyway, don't disable sharing, that is what keeps the DPN project working.