Perhaps I shouldn't have used that phrase, but I felt it would resonate with people more immediately than any other choice of words. In any case, I don't pay for Discord so I am definitely not a customer, whether or not I or my data is a "product".
There is nothing wrong with the expression or the idea behind it. We all know what it means, and what you mean when you say it. We all (seem to) need the reminder.
It would be nicer not to be the product, but the world isn't always nice. Sometimes it is.
