I know folks that have, and if you're trying to take a 1 MOA barrel and get it down to a 1/2 MOA it probably makes sense. The trick is making sure that the problem is not something else and that the problem can be solved with an easier fix. For most deer rifles and most deer hunting situations, you're probably just polishing cannonballs when it gets down to this level of polishing. However, if you're stuck with a problem rifle like the author had, it's something to try before you sell the rifle or send it out for rebarrelling.
Having said all that, I've brought a couple of barrels back from the dead with FLITZ and a lot of elbow grease, dragging a patch up and down the barrel a couple of hundred swipes.