I haven't actually used it yet, (first year with new blade, fresh snow, ground not frozen yet) but I have no intention of flipping the cutting edge around. (I do already have the blade flipped around....getting ready) Seems like an awful lot of work for not much (any?) reward.
If there's a valid reason, I might do it, but I don't know of one.
Yes, I am a newb, so give other replies more weight.
Interesting question nonetheless.