Again, read what Ahrefs themselves said. A high DR link from website with lots of OBL (eg Forbes, BBC etc) is pushing your DR less than 20 DR PBN with 20 OBL. Now if you agree that a 20 DR PBN link is stronger, more authority or better quality than BBC link... well.[QUOTE=" They doesn't have to be "quality" or "authority".
I think DR consider to the link quality, otherwise alot website with thounsands spamy links will get the high DR.
dont worry this is temporary it will be drop again. I had faced the same issue in recent. My website was ranking DR rating was 53 and now after 1 month or 2 month now become the same as it was.
My site is just 4 months old, it does not have traffic yet.How about the traffic of your site? I have a site, i acquired some of the high authority links and the DR went from 2 to 32 in a week, but i did not see any change in the traffic or authority, its still getting almost 0 traffic from search engine.