You know why giving someone bad sport for killing someone in passive mode is a bad idea? I'll give you a scenario that happened to me:
So I'm minding my business and pick up a high priority vehicle to respray and deliver to Simeon. I knew that this automatically made me a target and fact is, I'm cool with that.
So I get it resprayed and it's some big slow landrover looking SUV POS so it doesn't move very fast. Here comes bugatti man in his bugatti and smacks the living crap out of my vehicle and manages to get a good spin and pin me on the wall. Homebro pops out his car and airs me out with the auto-shotty in no seconds flat. No problem, well played. Now I'm pissed though.
Now this happened on the bridge that's heading over to the Simeon drop so the funderful respawn system spawns me underneath the bridge. I'm unable to get to anywhere quick enough where my mechanic could bring me a car and by the time I run to the street he's already delivered my vehicle and I get a small payout for having resprayed it. Fine. But I'm still ticked I didn't get the full thing and had to split it with some douche.
So I kill some poor NPC and hop in his whip and B-line for the drop so I can kill this bastard. The guy throws himself on passive mode and taunts the living sh*t out of me. Trolled. A good trolling too. I respect the guy for having trolled me that hard but now I'm livid.... cause he trolled me pretty hard.
The guy has sh*t to do and uses the join a race function to port himself halfway across the map so he can rob a store.
*fast forward a couple minutes*
The guy robs a store and is playing hide and go seek with me so I can't get a shot on him, kills me again (and now I'm really ticked), so I call for backup. My buddy gets there and the dude is on the beach taunting the crap out of him on passive mode again.
So I, pissed out of my mind and in a helicopter, fly down and nail the dude with the blades and launch his lifeless ragdolling body into the ocean. Pick up my buddy, and promptly dip back to the city.
Why should I get a bad sport penalty for this? Frankly, it was insufficient revenge for being trolled hard, as I didn't even feel entirely satisfied after getting that one kill compared to his 3 or so.
Now I get this is one of those few and far between cases but still....
P.S. I know I purposefully used awful grammar, it's the internet, deal with it.