[ubercore]

This is the best response to the article, IMO. We've kept our tech stack down, and lean heavily on postgres in a lot of cases. But having Redis able to handle scale independently of postgres has been a life saver, and saved us a lot of money vs what kind of postgres instance we'd need to match what it's doing.

Small scale, small app, You Just Need Postgres is on point. Funneling all of your scaling issues into Postgres, which isn't always the easiest to scale horizontally, can start to be a problem.