I saw a WWB graph on Facebook showing one brand working better than another. How can I be sure it’s legit?
First, it’s important to remember that what works for one person frequently does not work for another person.
Also realize that Facebook makes it possible to check on, if not prove, how legit someone is. Do you know people in common? Do they regularly post things that seem real? Do real people like those posts? How long have they been a member of Facebook groups you belong to?