Yes, this is something to keep in mind for sure. My whole view changed when I saw videos like that. What's it do to the life of those components? And the stuff is re-tinned, remarked. And then you know that if counterfeiting is a huge business over there, counterfeiters probably have the "old" equipment that the big guys use.. and could just copy dies and make their own chips and the quality might be total crap.
Here was a big one..
Another interesting article:
I'm in no way saying people should trust these imports and not assume it's without risk to be putting these in your machines. But any more, unless you know someone is definitely selling legit parts or you're buying from authorized distributors.. you might be buying unknown parts anyway. Plenty of people are willing to take the risk for you. The PCD5101P is a perfect example.. many distributors have those in stock now, brand new chips. Can't tell me they just found all this NOS of an obsolete part. Those same parts look like what you can buy on AliExpress/eBay for $1 or so each. Hey if they work, great. But I doubt that all of the distributors that are currently stocking them had the stock a few years ago before the China/HK sellers started selling them in abundance.
There's a lot of perspectives on all this as with anything. For a lot of people -- if it works, it works. Must be real. Why overpay. For other people, they'd rather KNOW where the part came from. It's ultimately up to the person buying it to know what's out there, what's being counterfeited, and what they *MIGHT* be buying. Then make an informed decision.
The real issue IMO is like with any other knock-offs of name-brand items. When it gets sold as GENUINE but isn't or is hard to discern and gets sold multiple times by people that have no clue it's a fake.