Really good article written about darkmarkets and shadow economy in last 5 years. In this thread there was lots speculations in past two years of how much volume and how much listings darkmarkets have. This guy some who got answers. Yes speculation here went also in how big share Monero have. There is no infor about that in the article, except confirmation that more and more every day pass.
Great article which brought me full circle back here to this thread which I think you all should read my comment if your thinking of joining that ICO.
https://bitcointalksearch.org/topic/m.37179092
Not really, all you have to do is read the comments in the various threads and check the trust and other posts of those making their opinions known on the subject. It's easy to find scams and on Bytecoin you don't even have to DYOR it's already done for you.