I had a "Counterfeit iphone" (though there is no writing on it at all) charger melt on me a year or two ago. I took a photo (attached). I see your guy gave it a massive one-bolt rating
![Smiley :)](http://newforum.arcadecontrols.com/Smileys/default/smiley.gif)
Bought about five of them years ago for cheap.
Anyway, I still have a couple that haven't melted or mysteriously vanished yet, and use them occasionally, but never near anything flammable, and check regularly. If getting a bit too warm, unplug.
EDIT: after reading the article fully, I might not use them at all anymore (safety).