Spine. The rolls and chips are an easy fix. Bent spine, not so much.
My Ontarios I could take out back into the woods, and do everything with. I have chopped down a couple large (12"+) trees with it, more than few medium trees, and thousands of small trees and saplings. Also baton'd tons of wood. Even twisted logs where the blade gets flexed close to 45°, but it comes out the other side straight. Sure, I've likely done things to them that would make gear queers cry themselves to sleep, but nothing too extreme. It's not as if I were throwing them into trees to pass the time.
Here's the deal, I've never remotely abused my flimsier machetes. The last one I bent (Tramontina) was chopping maybe at most a 2" cedar. Blade went in, the grains drove it down, bent the end, I forced the tree over so as to remove the machete without pulling or bending it for removal, and the sucker is perma-bent. While I may be genetically predisposed to exert more horsepower/torque into the sucker than the average person, I doubt that's the determining factor. Seems thickness and heat treatment are though. The Ontarios are 1095, maybe that's why they hold up better IMO.
Perhaps better question would have been "Is anyone using their Lite Machete hard? As in various tree chopping at least? And how does it fair?" It's hard to tell what constitutes use to some folks exactly.