It's good that you understand that. As there are too many people that don't even learn any information about the project or coin and call it a scam just because they decided like that, or because it's not open source. It always wonders me. Everyone believe they're the best experts.
Whoever considers himself to be the best expert in this matter then he will always be stuck with what he said before he checked it first, because there are many coins with very cheap prices but can still be traded by everyone in the market and such coins cannot rated as a Scam even though the price is very cheap, because the Scam is not seen in terms of price alone now.
Scam projects have never been considered in terms of price. However, as I managed to notice, projects that become popular abruptly become a scam, and then they lose popularity just as quickly, leaving users deceived. Users refuse to understand that slow and natural development is always better.