There are some really disrespectful people in this community.
Your article begun and ended with sarcastic remarks about the product. Realistically, what kind of response did you expect? The issues described in your article are very real, and very worthy of repeated discussion, but the article itself eschews discussion in favor of pontification, sarcasm and flamebait.
It has async writes...this is pretty well documented by 10gen and is also something noted by a lot of tutorials, blog articles etc. You should have known something this basic about a database so important to your business.
None of that would bother me in the slightest if you were not still here defending such basic mistakes and blaming them on 10gen.
2GB limit is clearly mentioned in the logs, that's fine, but anyone that sees this would expect that DB would start "screaming" loudly wherever it can (logs, response to the user on EVERY communication with the server, during any select,insert and others) that it reached this limit.