When I lived in China, the locals bought almost EVERYTHING from Taobao.
Who else would? It's all in Chinese for a start.
You can use an agent a middle man to buy stuff for you from multiple sellers on taobao who is local and then they quality check everything for you then if you are happy ship it all in bulk to you internationally. Usually used for fake clothing, handbags and shoes, etc. How else do peasants all have Gucci belts and Louis Vuitton handbags?
Taobao is like the wild west. Shopping in an Asian street market or stall shopping centre.
AliExpress is much more legit. It doesn't allow fakes although they are on there if reported get taken down.
The catch is prices are no longer as cheap as they were on AliExpress. Shipping times can be several months although usually several weeks. Electrical items usually won't come with a UK plug normally a cheap unsafe convertor.
Personally I wouldn't buy anything off it unless it's a well known brand name (including Chinese brands that most will have unheard of). As for taobao wouldn't touch it with a bargepole. Items can be seized and confiscated.
Custom charges are now common too thanks to brexit even of declared low.
Much better off now just buying through a legitimate UK retailer. I'll buy phone cases off AliExpress and tiny bits and pieces like that but no longer make the big purchases for several hundreds like before.
I've never used taobao it's all in Chinese which I can't read.