Earlier quoted context omitted.
If serology testing can show you have immunity, I would support giving seropositive people the equivalent of a vaccine passport, if the epidemiologists confirm its good immunity. So, I can see a basis for your reasoning. I would personally choose to still get vaccinated in your situation.
> I would personally choose to still get vaccinated in your situation. Why, if I may ask?
The potential harm of a re-infection or of infecting others is higher than the personal risk of being vaccinated.