Pavel Tstatsouline certainly does, and in Naked Warrior claims daily training, even more than once daily training, works as long as it is not done until failure. It is feasible to make people do pull-ups every time they exit the kitchen, but not until failure. The mainstream advice, which recommends 48 hours of rest, is based on training to failure. I think the difference is that the not-to-failure training is less like usual training and more like work, like digging with a shovel every day as a job.