I received the "Critic" badge for my first downvote on Main, but I am quite sure I haven't downvoted any posts yet. Glitch in the system?
Probably you've downvoted a post and removed it quickly within the grace period/ removed it after the post was improved, you'll get the critic badge for clicking that down button:
while your profile shows 0 downs .
Badges are never removed once awarded,so your [
critic] badge doesn't go away.