Oh, I did not think nor knew about that one. I was more curious about does this have the same effect as controlled burning / prescribed burning but this seems to be making things even worse then.
Thank you all for answers :)
It's amazing how fires can differ. Many "good" fires just essentially smolder for months, growing very slowly until the autumn precip douses them. The FS just lets them burn if they don't threaten any structures. I've even hiked directly over smoldering ground before, with no danger.