Can't say that every "Kill me" trader is oorp, that would be generalization.
Maybe there are some of those "Kill me" players who rp depressive-suicidal person or a person who have achieved all goals in his life so he thinks that it is fine to die cause he believes hi and their crew will reincarnate... so if you are a trader you can always write smth to make oorp reasons and situations inrp... use imagination. If you are a pirate and you want to rp little more, ask a trader more questions or indirectly give him/her some idea if he/she doesn't have any, so everything will get rp tone.