I think that a LHCJ is an offshoot from a HHJ. When I went natural, I wasn't focused on growing to new hair lengths. I was focused on experiencing my natural hair, keeping it healthy, and figuring out what it likes and how to style it. The LHCJ is where I am now, because my main focus is to keep my hair healthy to preserve my length so that I can hit long lengths I've never seen before. I'm now willing to PS more often, wash more often, and avoid trimming.
I think the LHCJ takes awhile for a lot of people to get to (if they ever do). People are constantly cutting their hair because they suddenly decided to go natural or become texlax or for layers or a new style or because of damage. I think constantly cutting your hair, especially for a style change, is a sign that you aren't on a LHCJ. There was a thread about people having a "short hair mindset" or a "long hair mindset." And, of course that's fine. There are ladies on here that keep their hair short-medium length for style or maintenance purposes, or length is nothing they're concerned with. On a LHCJ, you're not going to be as free-spirited with your hair decisions, and you've got a good routine that's not out most or all of the problems you may have had before.