Last time I've posted something about mRNA on Hackernews, it reached page 1 in about 2h and then got flagged immediately. HN is not a good place for mRNA discussions.
I'd just assume a separate set of users.
I'm being sarcastic but I don't think downvoting because of "source" is a good habit for HNers to have - there are far more diverse views and interesting points being made outside of the mainstream narrative, and if the goal is to have discussion with an intelligent community, "source" is a pretty weak reason to not have that discussion.