I don't see where Q is talking about capitalism or communism here. Q's only alerting the Chan that you need to be careful who you follow. What their possible priority's and motivations are.
Money could interfere or compromise your message. Not that you shouldn't support or listen to someone who makes money with their message. Just make sure the person isn't motivated by the buck over the message.
So if you see someone purposefully making claims about the message that are misleading, you probably want to take that into consideration every time you listen to them. If they are taking money's to purposely mislead the message, you probably want to consider that too when listening to and or giving merit to their message.
Doesn't have anything to do with communism.