You most certainly can be blocked from a company's facebook page. I know of several people who have been blocked from the Nissan Pathfinder facebook page. We are all/have been fighting Nissan to repurchase our 2013/2014 Pathfinders because they can randomly shudder and stall while driving. If you complain too much on their facebook page, you can find that you are no longer welcome to post there. To the PP who posted about contacting the company directly to work things out - in this case, it did not work - no resolution to the problem. Posting on the facebook wall is sort of a last resort for some help, and also to warn others about what could be their future if they also purchase one