It is a ridiculous and overly broad statement to say that of the tens or hundreds of thousands of companies selling on these sites, none have a QC process in place.
Sure but then by that measure neither does Amazon. I bought a metal plant off of Amazon stand that literally had half the nuts and bolts with no threading. There's no way that passes any kind of QC.
that not true,
i ordered a tv box that is clearly not as described ( i provided a prof ) , the only thing that is saving me is paypal from geekbuying. they are offering only part of the refund and shipping it back is to expensive for them.
on amazon if something is not described ( i ordered anker dongle for my macbook that did not work on the 2016 model)
i get a refund right away and the shipping covered.
Read the reviews and do some external research to make sure the reviews aren't bought. Exactly like on Amazon. Amazon has the same level of quality control as AliExpress. Same process applies.