I used a cut-off soda can bottom for the majority of the CDT. Really haven't improved it much since (unless you count new foil for my windscreen.
) It boiled water in ~5 minutes.
As an aside, an alchy stove loses efficiency after about 10 boils for the general standard ~2 cups for ea. meal. (I don't like thinking in terms of days as everyone is different in the amount of meals they do).
For longer hikes, I now go stoveless.
The only cult-like gear users are those who collect gear and hike less. As a person hikes more (generally speaking) gear is talked about less.
Grandma Mags was an awesome cook. What she could whip on a Sunday was simply amazing. Christmas? Those Italian cookies people pay $$$ in the chi-chi bakeries? Out of her memory she could make a tray that would make any so-called foodie salivate. I never heard her discuss the knife to use, or what brand of pot or the merits of this type of cutting board vs. another one.
She simply cooked. She simply baked. And it was awesome.
The "foodies" who go to Peppercorn and spend $50 for a garlic press will never, ever cook as well as my grandmother with a simple knife, some heat, a trusty pot and a spoon.
In the same way, those who drone on endlessly on why their choice is great and others suck (as opposed to saying why it works for THEIR way of backpacking. Subtle, but important difference), spend more time collecting gear and less time outdoors.
On trips with friends, we don't compare stoves...we hike and enjoy the gorgeous Colorado night ski.
On the thru-hikes, people who are gear centric are mostly ignored.
It is just gear. The least important part of backpacking. Tell us why you use a piece of gear. Why it works for you. But to somehow think a piece of gear is "best" or "better" than another person's choice? Pure gear wankery for gear hobbyists who are online.