You're right, I missed that post.
I was once an "aspiring" hammock guy... had pretty much the same outlook with regard to "treeless" campsites (as well as cold weather). Over time, I would get out in these spots and I'd realize, "well, gee, I coulda hung here". As a result, I'm not "aspiring" anymore.
Unless you're going to one of those REI ad spots where it looks like you could roll over and off a cliff, there are truly few spots where you can't hang. In those times, the hammock can become a bivy and you can tarp tent. Not saying there isn't some validity to the OPs viewpoint on his needs, only he can say what they are, but I also know how those "needs" can come to be in the mind.