[bogomipz]

Isn't this what Elasticsearch is doing now? Security is deliberately left out of the offering unless you purchase a very expensive support contract that give you access to Shield? I'm not sure I would call them a winner, its unclear how well they are doing. I think they are mostly running on VC money at the moment. I agree "Open Core" should be regarded with some suspicion.

Do you have a link to the MongoDB WSJ article? They are pretty terrible, even with a support contract bugs have a way of not being resolved or addressed.