Because anarchy systems should provide a safe haven for illegal professions that are part of the game, like smuggling or piracy. And although smuggling does not necessarily involve destruction of other ships, piracy does, as without the threat of destruction no one would stop a ship for pirates.
The game already provides navigation tools and a pre-jump warning to those who would prefer to stay safe and avoid anarchy systems, so I don't see what's the big deal of having no application of law in anarchy systems. I would even go further, I would give anarchy systems the highest profits, better paying missions, higher selling prices for goods and smuggling, for the ones who would brave the shark infested waters. Anfd it would make sense, as few would want to venture there, and those who were willing would be better compensated for it.
"like smuggling or piracy" - Agreed! Lower (or no) security should mean you can pirate and smuggle with a reduced risk of attention of security services... And that's all well and good
However, I'm more concerned with a Pilots Federation C&P (karma) system holding its member accoutable for their actions. Specifically the illegal destruction of other CMDRs (& NPCs).
If the C&P (karma) system works on the loose premise that you can destroy X CMDRs (or NPCs) in period Y, and if you reach that limit as you continue with your psychotic activities, the penalties against you are increased... How is that unfair or illogical?
If you're a pirate, continue to pirate away. Indeed even threaten and destroy a few victims... You'll probably get away with it. But start acting like a psycho and destroy innocent CMDR after innocent CMDR then you'll be penalised.
What's unfair or illogical about that? What gameplay does that damage? Because I only more logic and accountability out of it?