I understand the fact that investors should do their research before investing into any project or coin, but MarketCap sites, such as, CMC, CoinGecko and the likes, also have some roles to play.
Reputable exchanges do screen and scrutinize every coin that is listed on their sites and peradventure there is any already listed coin found suspicious of scam, it will be delisted. With this, i also expect that MarketCap sites should do the same, but these days, it seems they are left and displayed without doing the needful.
If this is done with due diligence by deleting or delisting scam coins, it will go a long way to help the system and at least make it safe to some extent.
i agree but, when investing it is really investors responsibility to do indepth research about the project that they are going to invest. Plus, they need strategy on how long they will hold on to their invested ico. But i agree that if every entity do their job right about what to list and what to ignore then a lot more people will be more likely to make money in this crypto space.