How? I suppose its a matter of interpretation. It's still quite profitable in my area as well as many areas. Undervolted I would be over 50% profitable.
how? it's already risen to the 400,000,000 level three months ago and hasn't moved beyond it. as you said, it's 'almost unprofitable' (or else it would be rising further). it may do so later , for example of the btc price rises, but for now, it ain't.