> Also, I can unequivocally state that no other vaccine have I ever seen that has to be continually boosted to maintain it's efficacy, which sounds to me like a deficiency in memory cell formation.
The mRNA vaccines don't produce IgA-mediated sterilizing mucosal immunity and they would not have been expected to, and they should never have really been expected to or promoted as providing sterilizing immunity.
The point, though, is to prevent severe disease and death which is mediated through memory cells, which are doing just fine and not waning, and mostly likely responsible for the bulk of the headlines that Omicron is less virulent -- because the vaccines are actually working for their intended purpose (turning severe COVID into a bad cold).
The vaccine misinformation on HN is really crazy. Conflating lack of protection against infection to failure to form memory cells is not a remotely well informed take.
The DYOR crowd does the absolute worst research. I don't have a problem with the policy in the title article because you all don't know what you're talking about.
And a multiple shot series of a vaccine is common, most of them are. The initial interval with the mRNA vaccines was probably too short for hypermutation/maturation to happen (but was necessary to get people protected as fast as possible, and to keep the trials as short as possible) so the "boosters" are the really the second shot of a two shot series.