I understand it a little less if you are say sharing folders between friends.
And I wouldn't like it at all if they deleted something from my dropbox, but it seems we aren't there yet.
Is that accurate?
I'm on your side here, but you need to be as transparent as possible here. Are you also saying that your system automatically generates emails that make false claims about having received a DMCA takedown notice?
1. The system for banning files would not send out copyright infringement notices automatically. It would be set up for banning things like source code that could be used to violate the TOS.
2. Someone on the support team you claim the system was designed for, would have done the ban, instead of you having to come in and implement "higher-level business logic" by using the ban system for something besides copyright violations.