Responsible disclosure creates a ton of perverse incentives for all parties and ultimately leaves customers worse-off. Bug bounty programs and all of the drama and exploitative labor issues fall into this pit.
Full disclosure might have short-term negatives for _companies_ involved but is best for customers/users as it allows them to evaluate and implement their own mitigations as early as possible. It's the only truly ethically consistent way to operate.
This really sounds like you’re back-solving from a pre-existing ideology of complete openness. A customer’s ability act early, e.g. mitigate, is quite clearly context-dependent. I can think of vendors I interface with as a customer that I’d prefer had vulnerabilities ‘responsibly disclosed’ to them. Nothing in technology is this simple. The absolute nature of your claims make it near impossible to actually take this seriously.
Full disclosure might have short-term negatives for _companies_ involved but is best for customers/users as it allows them to evaluate and implement their own mitigations as early as possible. It's the only truly ethically consistent way to operate.