Taobao's probably just following suit after worries over political backlash because of the unclear nature of Bitcoin and ICO's industry / market in China. I believe sellers of Blockchain, smart contract and white paper writing services will usually move to other freelancing platforms that have no restrictions. There are decentralized platforms available which need to pick up user base like OpenBazzar which could host as a great platform for these Chinese sellers / buyers. My only concern is the gradual negativity of cryptocurrencies has lead to them exclusing Blockchain as well? Blockchain based services can fund startups that rely on the technology to improve their businesses and operations. If there's a need for a private blockchain service and that was earlier being sold on Taobao, that'd be unfortunate.