In my limited experience with it, Citizen is trash and incentivizes bad behavior.
I once watched someone live streaming themselves following police into a call at a private residence. Unsurprisingly, the police officers responding forced the person back out onto the street. Now, I am all for accountability, bodycams, etc. but ordinary people holding up their smartphones _should not_ be following police officers into active crime scenes and any company that incentivizes or gamifies this behavior is, by definition, trash.