Because DA is filled with rebellious 13-15 year olds who like to support failed political ideologies.
Or it could just be because on the Internet you find lots of stupid opinions and stupid people, who generally claim to be intellectually superior to one another, and often gang up on those who disagree with them.
Now, I'm not calling people with different general opinions "stupid", but from what I have seen from some people's behavior, logic, and basis for their opinions, I can say a good chunk of people on the Internet as a whole are kinda dumb.
I have to agree. I'm a communist myself, but if other people don't like it, I really don't care. Whining about it wouldn't be worth my time. People have different opinions, but to complain about it is very stupid and immature.