For me the really irritating thing is the observation that when I want to enjoy flame wars about Mongo, I seem to see a lot of their 'try TokuMX' everywhere. Last time I checked they are on the 2.2 codebase, unless that recently changed. Mongo 2.4 was a significant upgrade, and assuming I'm correct above, I feel like the Tokutek team disregard that. I get that it's good marketing to suggest an alternative, but going along criticising that which you've built upon doesn't go well with me.