Well taobao pretty much is the majority of buying for many people. The blog posts are roughly as baseless as what it claims Jack Ma is.

44% of income? Wow. I think total online sales in the US are something like 7%

The people shopping on taobao and the whole population are different

You cannot derive 40% from that.

Also there is obviously a fraud transaction business to boost the number. Alibaba, by not cracking down them, acting to benefit from that too.

As I said, data are not accurate. But that should be be drawn from wrong facts.