I say "invested" because there is no actual investment with "The DAO". "Investors" are free to withdraw their funding back at any point before a proposal voting takes place. This is basically a risk-free proposition - "invest" your funding now to join on the buzz train, and take your money back at any point if you don't like the proposals being proposed. A majority vote within "The DAO" cannot actually vote for an investment with the entire funding available for "The DAO".
Technically speaking, until after some proposal wins a majority vote, no money actually changes hands... the investors are still in full control of their money and should still be considered the owners of it - not "The DAO".
For this reason, I think that calling this "the biggest crowd-funding ever" is incredibly misleading. There is no commitment and no risk, unlike how crowdfunding usually works.