I actually remember them doing posts like this but usually not on their sites main page. Usually on reddit or some random forum post that would get linked on reddit. The closer they got to that massive layoff, the less frequent these kind of posts became. I'm only aware of them through closely follow Arenanet. Some of the most insightful behind the scenes 'blog-entries' about the game are on fricken reddit. Not even small stuff, key stuff like why certain items aren't in your characters wallet or x feature is the way it is are buried in random spots between their forums (where its probably not hightlighted) or reddit. Example, I remember reading a dev go over why certain things go into storage/wallet and others don't while making a very convincing rebuttal to people saying its just so Anet can sell more inventory slots. The post would have made for a great blog post on their front page...its lost on reddit somewhere.