It is confirmed that they will ban all products and services related to cryptocurrency including all related to blockchain technology and will take effect on April 17, 2018, here's the update on their website
https://rule.taobao.com/detail-7969.htm?spm=a2177.7231193.0.0.7d9017eaIUYMET&tag=self (use google translate because letters are in chinese language). It is not shocking because it is a chinese company but it is weird because alibaba (holding company of taobao) which already said that they are planning to use blockchain technology while its subsidiary wants to ban ICO, cryptocurrency and blockchain tech services and products.