[MichaelGagnon]

The main point of the Pastebin rant is the claim that Mongo's development standards are insufficient for mission-critical software (such as databases).

So I looked through Mongo's change logs and one of the first things I saw for version 2.0.0 is a "huge" issue: "reIndex() on secondary drops all indexes" https://jira.mongodb.org/browse/SERVER-3866

This sounds like a bad bug for a database to have. And in this article 10gen president says that data loss hasn't been a problem since 1.8, which seems to contradict their own change log....

[mnutt]

I think most people think of data loss as data that is gone forever.

That doesn't excuse a large bug like this from existing, but it doesn't contradict his assertion.