I don't think posting nonsense will push the price down, as it does not damage success of any other social media. But I do agree that it does not help at all, same as just waiting for any high ranking posts appears on your feed page so you can upvote them to get curator rewards, the idea is to really read content and if you like it, you upvote it. Anyway, as there are posts not worth anything, there will be good posts with good opinions like this one to balance the equation.