In general I don’t have a problem with having both a parking/occupancy fee and an energy-based fee while charging, but I think having the parking fee only kick in at a particular SoC would be obnoxious, particularly at low utilization sites.
Having said that, fast DC charging networks do need to start billing at rates that are eventually going to be profitable and allow for network expansion and to encourage drivers to use slower charging when they’re parked for extended periods anyway.
I think PlugShare would also merge those reports. Your energy probably would be better directed at getting more people to use RateMyCharge so their stats were more representative rather than just people posting when they want to rant about station failures and not posting when they charge successfully.