I agree, any morally conscious founder should build in extra safeguards to stifle the bad edge cases and launch only after pretty thorough testing. Even an immoral founder who wants to avoid bad PR would do so.

Ideally all creators to be as thoughtful and careful as you. But we all know 1) there will be plenty of builders will build and launch regardless of how ready the app is, 2) users happily use whatever's engaging, convenient, and low-cost, while ignoring problems with privacy, security, and whether the product is net negative for a % of users (see TikTok, Twitter, Whisper).

If the technology is here, then the products will exist, and regulation isn't going to come in time to stop it.