Though much of the content on the Internet may seem harmless, most important thing to notice is HOW one consumes it, because there's always impulses guiding most of people's behavior.
And these impulses are always fueled by our beliefs, therefore one should try to invest some time as well into WHY those impulses exist and WHAT lacks do they, the person have?
Constantly seeking / consuming the same things isn't something that happens for no reason.