Im starting to worry about coinmarketcap lately, after series of deceit and spammish activity
The following are my observed reasons
1. Many dead projects still on cmc
2. Market cap is fake Cox many projects which have seized to trade adds up to the market cap
3. Cmc doesn't verify authenticity of projects before listing it
4. CMC now have ads of fake icos on their website thereby leading people to scammers
Funny enough so many NOOBS believe anything and everything dey see on cmc to be authentic
Let me stop here and anyone against it should bring a proof to counter it
Or offer more options
Why do you blame cmc for that? Coinmarketcap is just like a site for information and it's not their responsibility to tell the buyers or traders on what's legit or not. And the ads like that are not just on cmc but also everywhere and again it's your choice to check it's legitimacy and not by them.