I'll just deal with this Csound1 and then really must move on to more helpful discussions.
You're probably right to say that it does work "to the tune of billions" but they're certainly not making any money out of me. Given that Apple cannot assist me in blocking this stuff (something I had mistakenly imagined they could do) I have to fall back on the base logic of market behaviour for my salvation. Permit me to set out the argument in a dialogue between, let's say, an imaginary counter-faker boss and his technical director:
Counter-faker Boss: "Need to sell more fake Uggs! What can we do, technical director?"
Technical Director: "Never fear, Boss! I buy fiendish algorithm that generates millions of possible email addresses. Many are false fishes but some are golden Carp!"
Boss: "How so?"
Tech Dir: "Those fools that press the 'unsubscribe me' button are genuine living email addresses, Boss. Ingenious! You have mailing list of real people at last!"
Boss: "You mean I have mailing list of real people who don't want my Uggs!"
Forgive the Fu Manchu business, please, but it makes this point: what is the point in acquiring--with great guile and ingenuity--a list of bona-fide people who definitely don't want to buy your products? Either these guys are infinitely stupid--which I doubt--or the whole wise-acre stuff about never clicking the unsubscribe button is a misnomer as, indeed, is the sage advice about surf hygiene. It is immaterial to these guys whether you unsubscribe or not. That's just another prop to make their spam look like genuine offers from a genuine retailer. The only responses they're interested in are from those perhaps many thousands of randomly correct emails sent to folk who don't mind that these are obviously fake products and don't care if their email accounts are spammed until they glow.
If my reasoning is correct, there's nothing any of us can do once the algorithm has guessed our email addresses other than to have top-notch spam and junk protection from our email provider.