The blog post above from Monty Widenius, the creator of MySQL, starts out this way:
I, Michael “Monty” Widenius, the creator of MySQL, is asking you urgently to help save MySQL from Oracle’s clutches. Without your immediate help Oracle might get to own MySQL any day now. By writing to the European Commission (EC) you can support this cause and help secure the future development of the product MySQL as an Open Source project.
And continues to explain the fairly obvious: that Oracle benefits more from killing MySQL than it does from helping it.
Anyone who uses MySQL should read Monty’s post and take at least some of the actions he suggests.