For those who question whether concerns on effectiveness of prior infection is anti-science, I posted a rebuttal in the other thread. Bottom line is that the only thing that is most reliable is infection plus vaccine or booster. There’s too many variables with prior infection. The article is a nice read with links to the contradicting research.
A major point that a few insist on ignoring is that proving prior infection invites shady practices much easier than proving vaccination. Any burden placed on the anti-vaxxer is minor compared to another hour of covid and the burden that places on them and society.