Newbie.
Nobody "forces". Nobody "leeches". (Unless they're called Microsoft, IBM, Red Hat, Ubuntu...) But not because of any mystery - but because open source is about scratching itches. AND THERE IS NO OBLIGATION THAT THE ITCHES BE YOURS.
For f's sake, you're a bloody idiot if you honestly think that capitalist concepts of motivation are remotely interesting. Indeed, you should read the psychology paper on the FSF website and learn how people actually work.
I am perfectly happy to maintain the drivers, I don't NEED the hardware because I know that the drivers worked previously (and worked perfectly well). The only thing I need to do is to ensure that the connection to the kernel is working correctly and that the communication with the bus is working corrctly. Neither of which is exactly difficult. Any dweeb can do that. The device is an irrelevancy. If it's not under development, then the API can't change. That should be obvious, even to an idiot like you.
The drivers have, however, been removed from the kernel, so the issue is moot. However, that too is an irrelevancy. It is NOT HARD to maintain this stuff. The stuff I've done for work was hard. Developing the drivers in the first place would have been hard. But all the hard work has been done. This is simply logic to interface correctly to modern kernels and get the instructions over a modern bus. And that's trivial. There is no actual hard stuff left to do, that was all done.
You seem to think that us programmers care about money. Some might, and frankly I don't hold anything but contempt for them. I care about doing a good job. Yes, it's nice to have a roof over my head, but that's something a regular job can do. If there was universal income, I'd still be writing software and maintaining systems, same as I do today, but I'd be willing to do so for free because it's stuff I enjoy. Computers are actually worth talking you. You, not so much. Frankly, people like you could get run over by a bus tomorrow and it wouldn't bother me. I hold money grubbers like yourself somewhere between contempt and disgust.
Far as I'm concerned, I'm paid only because it's necessary in the current economic climate, because politicians are too stupid to cope with the idea that people ENJOY technical stuff.
Back when Freshmeat was running, I was managing 120 records for Open Source projects, ran 5 of my own, maintained 7 MUDs/MUSHes, an IPv6 node on the 6Bone, ran assorted mainling lists, and provided an open web cache and search engine for anyone in the north of England wanting to access the Internet faster than the transatlantic link provided at the time. I did this for free, because it was trivial, fun, and provided a service to others. I barely noticed the workload because it wasn't work.
I don't "force" others. Nor am I "forced". Such imagery is for the morons of this world, which you clearly identify yourself as being. I exist, therefore I do.