While I am an enterprise user of memSQL now, I still have a machine running the beta version 1.0 from years back. It is still stable and still fast as hell.
He's referring to what happened with FoundationDB. The announcement that they were bought by Apple was sudden and they pulled out all their downloads including open source ones. They didn't even update their webpage or give explanation why download links or github repos are gone.
The biggest issue is that FDB is not available even if you would pay. So it sucked for anyone who decided to use it in production.
