What is missing from them is consistency from internal team. Most of project I have followed, had problem with their idea. Some of them changed their plan. Of course it will take more cost and decrease their financial. I also think that external factor like Bitcoin and Altcoin volatility make it harder.
I think the most difficult situation is the bounty participants who immediately sell their coins, the team does not develop a good plan to buy their coins in order to maintain a good price.
Once you feel you have a good idea, and you have the zeal to see it through, because many people that has created projects has lost the zeal to see it through. Once you have that zeal, then you have to go for a very reputable team that can be verified for integrity, once you can have such team, then I think your project can be considered by many investors that will make such project a success when it is being released.
Without those factors put in place, investors would not pick interest and you will end up not meeting of with hardcap, if you decide to raise fund through it. Also, whatever project that you are coming up with will have to be with a product that can speak to the heart of people, I mean products that will be useful for many people out there.
These are really good words! I also think that if the project idea touches the soul of people, then such a project will certainly be successful, many good projects manage to assemble a hardcap very quickly because people love it.