Oracle paid for all the work done on VirtualBox. They paid for the past work and they pay for current work. You can dismiss it as something they bought, but th

Oracle paid for all the work done on VirtualBox. They paid for the past work and they pay for current work. You can dismiss it as something they bought, but that doesn't address that they paid for all the past work done on it when they bought it. It doesn't address that they pay to maintain and innovate on it. Everyone knows vagrant works with other VMs. Almost everyone uses VirtualBox. You are not obligated to thank them, but you are an ingrate if you do use it and don't have an attitude of thankfulness that it works well for you (if that is the case). I mean, if a person does that they really are ungrateful. What else do they complain about? Do I hate working with them? Probably. Attitude and acknowledgement of the way things actually work and who pays for them is a big part of being a nice person