For every Kickstarter/Indiegogo project that's cloned by a Chinese manufacturer (e.g, Fidget Cube), there's probably at least 10 or 20 "projects" created to resell something that's already available. It's a huge issue for the credibility of both sites.
(i live in asia)
I can see how it's effectively leeching off the efforts of those entrepreneurs who are trying to get pre-orders, but, as long as they haven't started building the product, it's a relatively small amount of work lost, in setting up a kickstarter page.
Many kickstarters are made by people with no experience in actually delivering product and are almost certainly doomed to fail from the start. Another large group are established companies that have investment already, and are using it purely as marketing because it is impossible to build their product at the funding levels kickstarters reach (outside of the big ones like Pebble). There are very few kickstarters that have non-obvious markets and are run by someone I would be willing to risk money on to have made, and zero where the return is worth my risk.
I'd really love to see a common sense approach to patents.
https://news.ycombinator.com/item?id=12724096
That said, there's still vibrant opportunity in the other direction, i.e. finding items off of Alibaba, claiming to not only have made those items but that they are best-in-class/first-of-its-kind, and attracting people who don't bother double-checking on Google or Amazon, nevermind Alibaba.