Saw some confusion about this elsewhere on BHW. Clarifying Reddit's d0follow links system here... Top-level posts with 3+ upvotes are d0follow; < 3 are nofollow. They start at 1, so that's only two upvotes. Links in comments are the same: if a comment has a score of 3+ upvotes, links in that comment will be d0follow; < 3 are nofollow.