I have came across these eth doubler which claim theirselves to be operating a pyramid smart contract in the alt section, aren't those basically ponzi? Or am I wrong?
How about you provide us with a link first before we make conclusions? It is most likely a ponzi, but I'd have to verify myself.So they are allowed to operate these pyramid schemes in the forum without being tagged with red feedbacks while the ones who post on the investor based games will be tagged in a matter of seconds?
It could be because nobody cares about ETH. 
https://bitcointalksearch.org/topic/terminated-1439712
https://bitcointalksearch.org/topic/eth-ethstick-a-satirical-ponzi-game-with-low-limits-to-reduce-risk-1437320
https://bitcointalksearch.org/topic/eth-th-greed-pit-a-pyramid-with-random-and-strategic-elements-join-us-1415365
