Well, I don't know about skunkwork. I've been using the last four of five linux betas to get real work done for paid assignments. It has been a lifesaver. Besides the expected glitches of a beta release (and some mistakes from my end) the software works fine.
Skunkwork, in my experience, is not a pejorative term. I've read somewhere that it's unsupported, other than what you can get from these forums (which is not inconsiderable). It's released as a tarball, with one user developed package--hence there is no automatic, user oriented installer. I'd say those characteristics qualify it for that term as a description, not a snark. No snark is intended. If the unsupported status has changed, I think that's all for the better. I've noticed that the Linux "about" box now says "Scrivener for Windows and Linux" whereas it used to say just "Scrivener for Windows." I'd say at the very least that was a step in the right direction.
I didn't find Beta 25 (the last Linux beta) much fun to use, because of some issues I had with it. I've just started using Beta 29, and even though it works wonderfully on many levels, it has most of the problems the Beta 26 had for me, such as the popup menu and window handling problems with multiple monitors, and the disappearing text... and I don't want to list them again here.
Now, don't get me wrong, I'm happy that you've been able to do useful work, and I hope that continues, but if I've learned one thing reading these forums it is that people's experiences with the Beta software are really all over the map, including intractable problems some have been having with crashes and similar deal-killing issues--none of which I'm experiencing in any of the three possible environments (Windows, Wine, or native Linux). I don't think one can say that things "work fine" based solely on one's own experience (though of course that is an important data point). That would necessitate ignoring or at least under-valuing the experience of other people, as if program bugs are a subjective, personal thing, and somehow don't matter if they don't happen to me. Or something. You aren't saying all that, of course, but Beta is as Beta does.
As for me, I'm absolutely thrilled to have even a tiny part to play in the emergence of this first class software for Windows/Linux. Mac is a world unto itself, or at least SJ would like it to be, and porting anything Mac to another environment is a brave undertaking indeed.