Japan's consumer affairs centers received more than 2,000 inquiries over issues related to bitcoin and other virtual currencies last year, about a 3.4-fold increase from the previous year, people familiar with the matter said Wednesday.While cryptocurrencies have been increasingly recognized by the public, the number signals more people traded unconventional currencies without sufficient knowledge and, in some cases, incurred losses from volatility in their prices.The inquiries made at the National Consumer Affairs Center of Japan totaled 2,071 last year, compared with 616 in 2016 and 452 i…READ FULL ARTICLE