We trusted him with our data, and he's spent the last 12 years selling it, making billions, and manipulating news/views/free speech to fit his agenda.
How is this an off-the-cuff comment? It is his mantra. Are we somehow not dumb-fucks for still giving him our data? Again - he's made billions because of that comment alone.
Would you like people to hold an off-the-cuff comment made at the age of 20 against you for the rest of your days?
I've many issues with FB, Zuckerberg and the rest of the cohort, but a comment made 13 years ago isn't one of them.