> Its only appeal was that it was free.

That was definitely its appeal to people who didn't want to pay anything for setup installation tools. But that definitely wasn't our only appeal or even our primary appeal. The WiX Toolset unlocked access to the Windows Installer in ways no other installation build tool does. If you didn't need that power then there were absolutely a lot of sharp edges and "missing features" to make your life easier. But if you had hard installation problems, those sharp edges were sometimes the weapons you needed to solve the problem.

> Rob Mensching was supposed to monetize WiX by offering $5,000/yr enterprise consulting & support services.

I don't monetize WiX for $5,000/yr. I monetize my team and my decades of experience building software installation packages of all shapes and sizes. With this "WiX Developer Direct" program from FireGiant (my company), you get monthly office hours directly with me to discuss whatever you want, you get SLAs for answers to tickets and guaranteed bug fixes so that your development team is never blocked. You also get an annual code review of your code by us and access to some high-end tools we develop. It is a high-touch offering and my customers dig it.

> I guess that's not enough.

That's not the case at all. The XZ Utils incident showed that Open Source sustainability is a huge problem and I was compelled to try to do something to address it. I don't think the Open Source Maintenance Fee is the only solution for sustainability, but I think it's a pretty good one for projects like mine. The WiX Toolset is the first project to adopt it because I need a real project to help work out all of kinks in the OSMF concept. Everything is working very, very well.