Point being, the ability to edit and view edit history changes very little with regard to the courts. Instead of needing to present Facebook with a subpoena for

Point being, the ability to edit and view edit history changes very little with regard to the courts. Instead of needing to present Facebook with a subpoena for information from e.g. logs, you're able to simply view history. It doesn't change anything whether you can delete the data or "delete" the data, it just changes how accessible it is.