This is true, but I fail to see the relevance here. This post just comes across as a "any chance to mention Free Software" type post. This thread is talking about if this decision by Nvidia makes sense. Trying to inject "well, we could all just ignore Nvidia if you were using Free Software," doesn't really contribute much to that conversation.
> That's a binary blob on your machine.
On my machine? It's less likely than you might think.
Being able to assume the #ifdef for features go one direction can have some benefit in reasoning about the code it relates to. In other words, there may be benefits to keeping the windows features a superset of the linux features, most likely in preventing stupid programmer errors.
At the very least I can confirm the object is identical (same md5sum) across Linux, FreeBSD, and Solaris. Past sources have indicated to me Windows shares his object.
Keeping support for four monitors in the linux code probably meant adding a bunch of #ifdefs in various files.
They just decided it wasn't worth the effort to maintain.