I agree with your sentiment that experience is needed, but I wonder whether the concept that "RBAs are for people who are experienced with e-cigs" is a little flawed.
If you have even basic experience with electronics, you likely have the knowledge and the experience you need to understand what's going on with a mechanical mod and an RBA. It's certainly going to get you further than a year of experience with a basic PV and premade *mizers that you never have to meter, right?
RBAs are fine for people who can (or want to) understand the basics of electrical circuits, battery technology, and aren't afraid to do some simple math.
They are not fine for people who can't or don't want to do these sorts of things, regardless of how much experience they have with other types of setups.
I bought a mechanical as my first mod (hey, I break things easily...) and was onto RBAs almost immediately. The only reason it took me any time at all was that I was afraid there was some other mysterious factor specific to e-cigarettes that I needed to catch onto first, but at that point I had already researched the battery situation to death before buying my mech mod so I was off to a good start.
That said, I did start with cartotanks, and consider myself very fortunate to have benefited from your cartotank experience, Baditude - thanks again for those blog posts!