Perhaps if being ethical costs a lot of time, your business is unethical by design. Or worse, you're cutting corners that should not be have been cut. Now in

Perhaps if being ethical costs a lot of time, your business is unethical by design. Or worse, you're cutting corners that should not be have been cut. Now in terms of this particular abuse prevention case, the problem requires a serious social and technical solution that would be expensive for Twitter to implement, and would harm their revenue to boot...