- The crowdfunding platforms assert that backers are not customers, but they don't get to decide that. It's a matter of law, which has not been settled (or even tested) yet.
Correct. In Australia for example, we have decent consumer protection laws, and I suspect a crowd funding contributor will likely win if they the "perk" they backed was a deliverable product. A promise of a product is essentially a verbal agreement which is actionable under consumer law.
Also, as far as the tax department is concerned in Australia, crowd funding contributions are not donations (nor investments), they are income from sales (because a promise was made on a specific product for delivery), at least for "reward" based crowdfunders i.e. a promised product.