I've reported several people for the same reason. It's strange just how often this occurs. However, Dice DOES NOT CARE. They have proven that time after time, like you, they respond with "no action was taken, nothing was found". I've had people follow me around the map ramming me, calling me numerous names, blatant cheaters that are basically rage cheating, and nothing happens to them. You know what will get you banned though? Having a gamer tag that says BF6 is COD. 

On a slight tangent, how bad do you have to be at level design to allow the helicopter camping issue on Manhattan Bridge? Camping has always been an issue, so it should be on their radar, so how can that make it to release? The answer, you won't be totally disgusted by it within the first couple of hours of playing, that's why. It's been several months since release, not even a mention of it? They got their sales, now they try to do just enough so you'll lose steam with your disappointment  and hopefully buy the next installment.