Over in the Bockade Runner Rebalance thread on the official forums there is a very small but extremely vocal minority trying to get blockade runners nerfed by removing the cargo scan immunity. For the most part it's one guy arguing incessantly for the nerf, repeating the same arguments ad nauseum and a few others supporting him.
There's a lot of crap being spouted about "bad pilots", "good pilots" and scan immunity somehow making flying empty BRs on autopilot less safe for what he considers "good pilots".
The nerf callers keep insisting that removing the scan immunity would make flying empty BRs on autopilot safer from gankers. They seem to think being unable to see what a BR is carrying means high sec gankers kill all BRs on sight and nothing could be further from the truth. The truth is the vast majority of the time gankers are in it for profit, not being able to see what a BR is carrying means they don't know if killing your BR is profitable or not so they just ignore it.
I'm speaking from extensive personal experience with 25 blockade runner pilots regularly flying all over high sec on autopilot. That includes flying on autopilot to/from all 5 main hubs, the largest hubs in 16 other empire regions, and through virtually all of the worst, most notorious 0.5 gank camp systems like Uedama, Litiura and the Deltole/Aufay/Balle chain.
In the roughly 1 year since I got my first blockade runner I haven't lost a single one in high sec yet. I did lose one to a low sec station undock camp while flying manually but that's another story entirely.
The truth is scan immunity does not make flying empty blockade runners less safe, or at least not by any significant amount.
What scan immunity actually does do is make flying all blockade runners (whether full, empty, on autopilot or not) much safer in high sec. In low and null it really makes no appreciable difference.
The cries to remove scan immunity aren't about safety for empty blockade runners like the nerf criers insist. It's all about gankers wanting BRs nerfed so they'll know if ganking a BR is going to be profitable or not rather than taking a chance and risking losing a little ISK. They want to take the risk of not making a profit out of ganking BRs.
IMO ganking hauling ships is already way too easy, nerfing the only class of hauling ship that isn't easy to gank would be a huge mistake, especially since BRs have the smallest cargo holds of all haulers.
In fact AFAIC cargo scan immunity isn't what's overpowered, it's the ability to cargo scan in the first place that's overpowered and should be removed! Make griefers and gankers put a little effort into finding profitable targets instead of making everything easy for them.
I sincerely hope CCP doesn't listen to the nerf criers and kill one of the few uniquely useful ship classes in the game.