As a crypto newbie myself I can say that some of these thumbnails or some of the content (see MMCrpyto) just look like scams to me, I would never think that it's a credible info source.
What might hurt me more is "fear of missing out" - when your friends talk about how much they made from a specific coin last week and you just buy it before it's not too late, without analysing anything. You buy it on its peak price and then suffer some losses.