What they mean is DNT is not respected by the advertisers and hence supporting it is not leading anywhere. See this post https://www.reddit.com/r/announcements/

What they mean is DNT is not respected by the advertisers and hence supporting it is not leading anywhere. See this post https://www.reddit.com/r/announcements/comments/6qptzw/with_so_much_going_on_in_the_world_i_thought_id/dkz2xfr/ https://www.reddit.com/r/announcements/comments/6qptzw/with_... , they suggest using an adblocker. I would also suggest using Privacy Badger from EFF.