The first thing I want to stress is to not panic. We've had plenty of counterfeits hit the market before, and Magic hasn't died yet. Instead, I want to simply bring this to your attention with a few tips for handling this.
First, as I said, don't panic. While some of the flaws with the last run seem to have been fixed visually, odds are the materials these are printed on are the same. The first batch of Chinese counterfeits felt super fake to the touch, and I doubt these are much different.
What I do suggest is educating your friends about these. I saw a Craigslist post earlier about someone selling these as "proxies," and that's just not okay. Whether there's any ill intent on the side of the buyer or the seller doesn't matter; these shouldn't be in circulation. There are no laws that I'm aware of that prevent this, but the fact is more of these out there do not help our game. Rather than just berating anyone who may think the concept is cool, I would suggest simply educating them about the fact that while it may seem cool to get "Power" for cheap, in the long run it has the potential to destroy the game, and there's no point in having cheap "Power" if you aren't able to play it.
The battle against counterfeiting is always ongoing, but as a community we've dealt with it before, and we're equipped to deal with it again.