If the website were European, I'd expect a tick-box to opt out from marketing (email or snail mail), which the company would be bound by.
"We are truly based on donations.you will get no ads and no spam. thx"
Also, what data is collected permanently, for how long? What happens if the venture where acquired? Whom would own that?
If the website were European, I'd expect a tick-box to opt out from marketing (email or snail mail), which the company would be bound by.