Why would anyone use MongoDB when RethinkDB is available?
taken from their page : https://www.mongodb.com/mongodb-scale
This should give people some insight on why MongoDB is being used in the industry.
How is the performance with the new v1 protocol? (still faster, I'm sure)
Which would imply you have to restore from backups continuesly. Or else any bug you run into might be the result of data corruption.
Its the fact that you cant even tell. And its not just about loosing data. If you rely upon a consistent world view (i.e. schedule payment, jobs scheduling, vms provision or shipping, account systems) the risk is unacceptable.
https://rethinkdb.com/blog/rethinkdb-joins-linux-foundation/