I think the FoundationDB acquisition by a company with no interest in selling enterprise products was an anomaly. A popular, commercial enterprise storage system that actually makes money would be an acquisition target from the likes or Oracle, SAP, EMC, etc...in that scenario, the acquiring company would have significant interest to increase adoption of the product and maintain the developer community versus completely shutting the product down.
You mean like Oracle with MySQL? At least in that case the 'community' could move to MariaDB, which is not an option for non-Free databases like MemSQL.
If MySQL was a drop-in replacement for MemSQL, you wouldn't need MemSQL in the first place. The reason you chose MemSQL is probably because it offers something that MySQL doesn't. If I can't take the source and continue using the product, it's a very different situation from MySQL/Oracle.
