At least he thinks so: his resume page says "saved the company by optimizing performance up to an acceptable level." That's not a quote from somebody else!
Besides, at some point someone looking to hire him is going to ask him to back that up, and it would be foolish to invent stuff you can't defend. (I realize people get away with lying on resumes quite often, but bold claims call attention to themselves.)
A very detailed and in-depth post. Haven't gotten the chance to read all of it yet, but it looks like it might be the solution to many peoples issues. Probably the thing I like about it the most is the multi-datacenter awareness. This is something almost totally missing from databases today (i am speaking specifically about geo-redundancy). What I'm hoping is that it still gives you enough flexibility to do really basic GIS queries on data. Does anyone know if that would be possible?