I am not defending dang, but that does appear to be a weaponized tactic being utilized here on HN.
Flag something, downvote it en masse, get a user making a dissenting opinion on a "you are commenting too fast timer" which appears to be triggered by mass downvotes, and then hope the flagging carries through.
The problem is with HN - they are permitting this type of behavior, and not realizing (or not actively intercepting) the use of this tactic to silence dissent.
While some time ago the idea that IV injection was problematic with the vaccines would be called fringe or, more aptly, cutting edge research, nowadays we know there is a legitimate issue, many countries are now banning these vaccines in persons under specific ages, and the body of research is more developed.