From the conclusion, "Writing social software is hard. And, as I said, the act of writing social software is more like the work of an economist or a political scientist. And the act of hosting social software... is more like a relationship of landlords to tenants than owners to boxes in a warehouse.
The people using your software, even if you own it and pay for it, have rights and will behave as if they have rights. And if you abrogate those rights, you'll hear about it very quickly."