I agree that for light general duty linerless knives, made possible by modern materials, are great. Not all of these materials are created equal, however. Some will flex or break with harder use, rendering the knife useless, or inefficient. Cold Steel uses the linerless approach on the AL/Recon 1/AK47 knives as the G10 is very thick. Also, there is, I believe, some reinforcing around the lock. I have a Lone Wolf Mini Landslide that is linerless, and it is tough. But, if I had to use it really hard, I do not know. Cold Steel started putting liners in the Voyagers because the flex was really bad from the material they were using. I would as soon have a linerless American Lawman as I would a full liner knife, but this is due to construction. However, the much loved Spyderco Military still has partial liners in the stress areas and this is something to note.
I do carry a small linerless knife (Dragonfly) quite often, but, then again, I do not expect it to be a rescue knife. As long as a linerless knife is not pushed outside its design parameters, it is okay as a simple cutting tool. Just don't as too much of most of them.