Stake

The goal of most pirates is to "make their stake," that is to earn enough money to buy a new identity, re/enter regular society and live comfortably. A pirate's idea of comfortable living is being so stinking rich they'll never have to tolerate any messing from the normies.

Buying a new identity that is watertight enough to allow a pirate to escape their past is ludicrously expensive on its own, so having enough leftover for the second part of the plan requires a pirate to have accumulated a huge amount of collateral. Needless to say, the number of pirates who survive to achieve this dream is pitifully low.

Any pirate who wants to pass in polite society will have had to unlearn their habitual use of old Earth profanity, to which they are highly attached. Utterly rejecting HACs throughout their career in crime, they will need to habituate themselves with their use. Not within earshot of any of their colleagues in crime, however, as that will give the game away that they have accumulated a fortune that is likely ripe for stealing, and any pirate planning on robbing another pirate is not going to be leaving them alive and capable of exacting revenge.