Yes I have had Players try and kill me and take my cargo (Pirate), No I have never had a player try and "roleplay" a Pirate. So tell me how you play a pirate? What is your modus operandi? How do you play different from a "Killer"? Help us all understand the difference between a Pirate and a Killer?
I can have a go...
When I find a potential target in supercruise, I line up on it, and then try to check it's modules (usually looking for mining gear - also checking shields, point defence, and what kinds of weapons it has)
Then I'll attempt (depending on how much time I have) to send a comma message in super cruise just before interdiction, something about throttling down and preparing to be manifest scanned.
Once I've got them out of super cruise I'll send a simple fast message like "halt!"
Then I'll be scanning them while sending another message which generally includes a threat of opening fire.
They normally try to run, so at that point I'll try to disable them. Sometimes this can take a couple of interdictions or even following them using a wake scanner.
Once disabled I'll be launching hatch breakers while explaining that they could have gotten away with less loss of cargo if they had complied with my requests.
I'll then try to get as much cargo as I can before the cops show up, possibly sending a fighter to distract the cops while I continue collecting.
I'll often give them a harsh warning that a lot of pirates aren't as professional (or something) and would just destroy them for none compliance.
Then I'll sometimes send them a message about how slow they are at rebooting their ship, and that they should probably hurry up, as being completely disabled would be bad if one of the aforementioned pirates turns up (this has happened a few times, other pirates followed the wake, and then robbed, and destroyed their ship after I was done)
I'll then super cruise or high wake out depending on the situation, leaving them with a hefty repair bill and a lot more of an empty cargo hold than I would have requested if they had stopped.
I've destroyed four ships by accident so far, when trying to disable them as their hull went before thier thrusters/powerplant.
I was annoyed I had accidentally destroyed them, because it gave me notoriety, which stops me being able to swap out modules on my ship, which I do quite often.
I sell the cargo at the nearest black market, and then either pay off the bounty at interstellar factors, or carry on looking for targets.
If someone has no cargo after I scan them, I'll express my disappointment, call them a name for being poor, and tell them to go buy something worth stealing, then I leave.
Does that help you see the difference between a killer and a pirate?
(Of course, there are an infinite number of variables here and lots of different outcomes, this is just one of the common ones reduced down to the basics)