You are right, though there are genuine bulk of information on the Internet but there are also many erroneous and fake information on it. It is full of unverify information and it's very important not to take everything on the Internet as the real thing
It very important to further research on things you see on the internet before believing it. Remember, many people gets scammed through the internet. The same thing apply to real life, enough investigation and research is required on things we hear before believing them.
most of the time people do research but what happens is the following:
person X wants to make money on the internet, they go to google and search: "how to earn money on the internet" and then there are many sites to earn money and all of them sites that deceive and lie people that because someone creates a website, post content on site and other people also create site but are lazy and for that reason copy all malicious content of the site they find. so the lie spreads to many sites and people even when doing research will find malicious information and have lost money