The credit card companies are fully aware of this, and bank (literally) on the fact that "the vast majority of consumers, including those with the socioeconomic wherewithal to walk away from their debts, feel themselves morally bound and pay as agreed."
If you find yourself on the business end of a debt collector's harassment campaign, you can generally make it end simply by "carefully sending a series of letters invoking [your] rights under the FDCPA."
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