This thread was my attempt to understand those rules so that I could make my own informed decisions about my system and approach. My switch from Aperture to Lightroom made it a convenient time to consider another approach.
Agreed and I think at this point, the rule is, there are no rules if the system makes sense to you, it works for you, you have flexibility in changing the workflow as you move forward. Even jjj said he used to use one system and changed it, indicating:
1. He got it wrong for him.
2. He
was able to move forward to another organizational system.
As I wrote, don't let FUD proponents give you an idea that everything is fine then one day, your system blows up in your face the next day. Even if you run out of room on a drive, there are simple ways to move forward.
Lightroom still doesn't feel "just right" to me. If, and that's a big if, Apple's new Photos app started with the many good features of Aperture and then expanded them (to the cloud, with 3rd part non-destructive plug-ins, or something), I may well want to be in a position to move back. I will not be deleting my Aperture library for quite a while.
That is telling! It indicates you need a system that doesn't depend on Lightroom, you might move elsewhere. I love LR and plan to use it as long as I can but there's no way I'm building a system that would break if it went away, died while I needed to find photo’s and so on. Hence the reason I use a well structured (for me) folder system. It's why I would never use Kelby's suggestion of dumping all or even most images in one folder and using proprietary collections to find them. As I said, there's a balance IMHO between one folder and 1000 folders. That balance is understood by me and no one else. And the same is true for what you do. And that's the bottom line. Unless folks here can describe how on one day, everything is running fine and as you expect then the next you've got an impossible to fix mess, I think you should move ahead with what you feel works best for you.