I'm going to point out (to the original commenter's credit) that your post has been flagged, that this comment of yours is a little haughty, and that based on the other comments the title for this is misleading and could more accurately read "Denmark no longer offering Covid [boosters] to adults under 50"

Which suggests to me that that you knew what you were doing when you posted it with that title. It seems somewhat intended to spark incendiary comments and disagreement. So I think it's pretty reasonable for the commenter to be suspicious of you. If you want your first article to go better, next time post about something less controversial, or with a more accurate title.