Coinmarketcap is now owned by the binance so it nullifies the advice from OP and not much to discuss that because the usage of coinmarket cap increased a lot over the years and its not really a reference for anything just to get everything at one place but the user has to put their effort for further researches about the project or coin or exchange once they identify it on coinmarketcap.
Coinmarketcap had already been bought by Binance which is really very unexpected and now it isnt really an issue for them to be boycott or something because they wont really do
anything stupid since its really tied up into their current exchange reputation and if something shady do happen then we know on what would be the possible damage
that it can be done into their reputation.
There are lots of similar sites like CMC but i cant really just tell on why the hell i do end up on using this ever since i do touched the ground of crypto market.
Ive been using these all over the years when i do tend to check out the entire market situation or the coins or projects that i've been holding.Everything you can check it out
but its always been suggested to make up more search if you do still have on doubts.