"This is a terribly misguided and ham fisted approach to protecting backers:1. Prototypes are just that, prototypes - often several steps away from the real thing. Renderings are incredibly useful for bridging the gap and are often a more realistic representation of what the final product will look like.2. The majority of 'problem projects' within the design category are because of operational/fiscal shortfalls - how this issue is not at the front of peoples minds is quite surprising.3. You can't fight technology. It's not overly difficult (and often less costly than producing fully functional prototypes) to produce photo realistic renderings that will fool the human eye.Come what may, these rules are short sighted and will do little to stem the problems I think they are trying to solve.Kickstarter is the dominant player though I do wonder how long this will last - a decision like the one we are now discussing is so short sighted as to highlight significant deficiencies in their management OR suggest their ambition to move away from product based campaigns that fit the 'I'm using crowdfunding to realise a product I couldn't create otherwise' sketch."