[bsg75]

I would hope this is not the case, because it means the nay-sayers are careless developers, or simply internet-attention-seeking by criticizing instead of contributing.

Mongo has taken a lot of knocks in part because its write ack behavior was (initially) documented in a way that not everyone felt was sufficient, but also because it is marketed as a universal solution for RDBMS woes.

Redis has never been touted as a replacement for a primary data store, but more of a "toolbox" in some cases, or "middleware" in others. To apply the same criticisms to Redis and Mongo implies those users did not research their platform decisions at all.