Agreed. If the founders have not enough of their own money to list on exchanges & monitoring sites, they have no business starting a project. Anyone asking for presale funds before exchange listing is 99% scam or doomed for project failure.
A lot of these scam assholes are just starting new coins and repeating it over and over. If the coin is hard to mine, POS/MN only or they are asking some ridiculus presale amounts ($ thousands), it's likely a scam.