Comment #2: the person who actually wrote the paper.

Günter Kampf is concerned about the perception that vaccinated people are seen as unlikely to pass the virus on, both in the paper referrenced earlier and another one: https://www.thelancet.com/journals/lanepe/article/PIIS2666-7762(21)00258-1/fulltext

He is so concerned that in that other one he fails to mention that his number one reference is a paper which points out that the viral load in vaccinated people falls faster than that of unvaccinated people, limiting - comparatively - the number of people a vaccinated person could infect: "Fully vaccinated individuals with delta variant infection had a faster (posterior probability >0·84) mean rate of viral load decline (0·95 log10 copies per mL per day) than did unvaccinated individuals with pre-alpha (0·69), alpha (0·82), or delta (0·79) variant infections." https://www.thelancet.com/journals/laninf/article/PIIS1473-3099(21)00648-4/fulltext