doxxing cops isn't a bad idea.
If the rioters are going to riot, would you rather them burn down innocent grocery stores, the restaurants, the auto shops, public housing, loot the atms, etc, etc....or would you rather them be more focused and burn down the homes of the bad cops which are all cops in general. Obviously one could say they would rather have neither, but ultimately the rioters get to pick their target (No pun intended) and ultimately they could choose all the above-while we can discuss the philosophy.

Now even supposing it didn't get that far, the cops would live in a perpetual state of fear and ultimately find something more productive to do or admit to the world that they don't have any skills in life.