alt Hacker NewsBezos didn't buy DC, he bought a newspaper. The commenter was saying that the decline in quality was potentially unrelated to the acquisition and then immediately compared pre and post acquisition quality. That seems like a strange way to make that point and like it might suggest that the acquisition perhaps was related to its decline in quality.
The commenter said they moved back to DC in 2017 and noticed the change then.
Elementary reading skills suggest this means they lived in DC for some significant period of time prior to 2017 as a WP reader, moved away from DC for some unknown period living elsewhere as a non-WP reader, moving back to DC in 2017 when they started reading WP again.