The problem with this is, it's virtually impossible to compete against the FOSS trunk that your now-closed-source software branched off of, or FOSS clones of it. Low-end proprietary UNIXes got wiped out by GNU/Linux and the BSDs, for example.
Amazon, Google, MS, and all the rest easily have the talent and resources to create a Redis replacement with code that already exists. They'll do so because it is to their advantage to not charge for the license fees Redis now wants.
Amazon, Google, MS, and all the rest easily have the talent and resources to create a Redis replacement with code that already exists. They'll do so because it is to their advantage to not charge for the license fees Redis now wants.