adam1986:
How hypocritical and ironic!If you judge someone's technical prowess/ability based on their English grammar skills then by the same rule you should NOT buy Chinglish products (even South Korean products for that matter). That only proves you go for cheap products and not quality. Heard of DigiKey/Mouser? They have better support than Taobao/Aliexpress.
Attention to detail is what matters. If a manufacturer of a purportedly high-end product doesn't care enough to get their web site done well, including the text in what is presumably their native language, that is an indication of lack of care for detail, which may also be reflected in the product. A South Korean manufacturer should have at least correct Korean on their site, and a Chinese manufacturer correct Chinese. Them caring enough to have their web site translated in correct English does mean a lot to me: it means they do care about detail.
Likewise I would not expect perfect Chinese or Korean on the web page of an American supplier (if they would even care to support any language other than English).
If I buy a cheap product off Taobao I have no expectations of any English description or support in the first place. Not even if I see English on a Chinese manufacturer's web site: it's not their native language, it's a translation. The Chinese I do expect to be grammatically correct but my Chinese is far from good enough to judge that.
Digikey's information on the web site is indeed much better than what you find at many Taobao shops, but also there I've ran into quite some inconsistencies when it comes to product specifications, with the info on the web site not matching the data sheet.