Kill your engines now... you have 5 seconds to comply.
Transfer X credits to my ship.
You have 20 seconds to complete the transfer or until your ship explodes.
and in 20-30 seconds, I'm leaving the scene of either wreckage, or just a mad trader.
That is about the worst "role-play" I've ever seen anywhere on these forums. I tend to hold those registered and posting here to a somewhat higher regard than the "pirates" I see and pretty much know don't bother reading rules (even though it's given to them as cargo).
But a thirty-second (max apparently) encounter, pretty much w/o giving the trader a chance to talk, is PvP abuse in my eyes. In my experience, it all depends on the pirate's attitude if he gets some easy credits or a run for his money.
A pirate who CD's me (it's expected), and says something with a sort of RP, and actually acknowledges the response, will see me sit and talk. Trading's lonely, and even talking to a pirate is better than talking to the bulkhead. Ask the pirate what he/she is going to do with the ill-gotten gains. I've had answers ranging from "My family was caught up in the purges in Rheinland, and I turned to the Bundschuh because of that..." lengthy story to "i bui kruzer and pwn" (that's how it was spoken).
I usually also end up giving the pirate something extra for various reasons. Asking for a decent amount of credits instead of a huge sum? you get an extra 10%. RP with me and/or give a good answer to my questions? You'll get a bonus as well. Ask for my cargo all of my cargo? if it's cheaply bought, I'll jettison it and destroy it before you can tractor it in.
It's about how you present yourself, both the trader and the pirate. I won't say I haven't done the "Oh just kill me, I'm sick of you pirates", because I have. Attitude and knowing the world is bigger than just you is a lot.