MMM is a declared Ponzi run by a guy named Sergei Mavrodi. In 1990 he made a disruption in Russian economy.
According to Wikipedia from 5 to 40 million people lost up to $10 billion. Then he was jailed, but after coming out he made two more Ponzi
MMM-2011 & MMM-2012. Both have failed. Currently he is running MMM Global which is spread across South Africa, India, Indonesia and many other developing countries.
I recently came across
MMM Global Republic of Bitcoin through a
reddit post. It seems many people are buying into bitcoin across the globe just to be part of this Ponzi. BTCC CEO Bobby Lee
said the same to CoinDesk.
When this
MMM Global Republic of Bitcoin will collapse, the effect will be catastrophic. Please do not confuse it as other petty Ponzis that run on Bitcointalk. It'll not only drown those who invested in the Ponzi, but may also take down the bitcoin price at ground zero. Please note that Mavrodi's Russian Ponzi was many times bigger than bitcoin's total market cap.
Hence, as theymos controls bitcoin.org, bitcointalk.org & /r/bitcoin, I'd request him to pin an awareness notification in all these sites.