The biggest sign is that they do not have a good audit, not from a place that matters, like CertiK, and yes I know that it costs a lot to get that but if a project doesn't have enough money to get it, then I am sorry but I am not going to get in neither. Why would I fund their entire thing, you should be spending a few thousand dollars, even tens of thousands of dollars if you believe in it, if you do not have that money then you shouldn't make a project to begin with.

There are projects that spend a million dollars on their project, and not that rarely, they end up failing too and losing that money. But at least they tried, I could see myself funding them, they could make more or fail. But I am not funding any project that can't even afford a CertiK audit.