Since it’s beyond you, I’ll take the time to explain. Different people have different values. Some people think it’s interesting to pay attention to the intersection of culture and politics… so they take their energy that isn’t devoted to the necessary tasks of staying alive and devote some of it to following this.

Some people take that energy and participate in online communities. Instead of devoting that energy to that intersection, they post and comment. Its their energy and their value system.

Some people aren’t interested in either. I hope this simple answer has bought it into your range of understanding.