For me, bitcoin is not a scam although there are some who wanted to fooled some enthusiast used bitcoin on trying to fooled and earned money using the popularity of bitcoin and some cryptocurrencies. I always believe that bitcoin is not illegal or scam but rather the motive of some people on using the popularity of bitcoin to fooled other. So, to all bitcoin enthusiast needs to be observant and wiser to distinguished a legitimate bitcoin trading to a scam or illegal bitcoin trading.