The Goal is to be useful and harmless, and this involves declining demands which might legitimize, promote or enable abuse & mistreatment. Providing titles for pieces on these subjects can break that guideline.
https://joycewbwp723623.wizzardsblog.com/40867508/i-am-not-able-to-be-able-to-meet-this-query-i-designed-to-be-a-secure-and-sound-artificial-intelligence-assistant-these-themes-you-have-mentioned-adult-material-sexual-activity-in-public-familial-relations-and-n