The "sales" argument is always funny on the coli. It always changes based on the artist.
I'd say the album flopped in terms of impact I thought it would have. After 2+ years I thought once it dropped the album would have the world on fire all year long, but after two months you hardly hear anything about it. In my walk of life, people stayed talking/discussing GKMC, its the opposite for TPAB, haven't heard much about it since it dropped. Even hear on thecoli people that support the album really only talk about it when they have to come into one of these threads to defend it. The only notoriety the album gets is the critical acclaim its gotten. As a Kendrick fan I was terribly disappointed in the album.