In the end it doesn't really matter. I feel the article is an educational one, but as it's the chance for us to take our sides of the fence in praising and criticising, we'll still do it anyway.

I wouldn't be surprised if half of the commenters haven't used Mongo, or stopped in the 2.0-2.2 days.

A lot of software fails, companies close, while some succeed. Some software that has been hyped up ended up not succeeding, but it doesn't matter. One learns from others' mistakes and keeps growing.