As someone with over 30 years in hardware + software + mechanical product design and manufacturing one thing that always bothers me on Kickstarter is the dishonesty of funding goals.
Now, I do realize quite a few project owners come at it without the product manufacturing experience. I definitely get that part. Yet, I don't see it as an excuse. People need to do due diligence and get numbers closer to reality.
I remember one of the first (if not the first) RGB LED light bulb project (don't remember the name), perhaps two years ago. I think they went out with a raise target of $50K. If I remember correctly, they ended-up raising nearly $2MM.
The instant I saw that campaign I knew that if they raised anywhere south of somewhere between $1MM and $2MM there was no way in hell they'd be able to get the project done and delivered. The required iterations covering DFM (Design for Manufacturing), mechanical, electrical, firmware, tooling, environmental testing and regulatory testing would burn cash as if it were free. In hardware, each iteration cost real money --and potentially lots of it. $50K was not going to make a dent.
If they go into it knowing the funding goal will not be sufficient and are banking on exceeding it, they are simply not being honest.
My scam alerts go off immediately when I see such a severe project-to-funding-target mismatch. And that's why I call it "dishonest". It could also be "naive" but, again, it's the old "ignorance of the law isn't an excuse" situation. If you are going to go on Kickstarter with a hardware project and have no prior experience in manufacturing, do everyone a favor, do your homework and set a funding goal that will not have you scam your supporters out of money when you burn through it too quickly and can't deliver.