https://www.reuters.com/article/alibaba-singlesday/chinas-singles-day-loses-lustre-as-growth-slumps-to-single-digit-amid-crackdown-idUSKBN2HX07S >SHANGHAI (Reuters) -After more than a decade of explosive growth, China's Singles' Day, the world's biggest online shopping fest, is losing its gloss and bracing for more modest growth in coming years, hurt by a slower economy and tighter regulatory scrutiny.