Why so much spam...

This website uses the terrible system of credits and the 15 post limit. Instead of encouraging more people to post quality content, they are getting more posts that lack any sort of quality, because of the shit system. They need to completely remove it, or come up with something new. This system does nothing but create low effort posts from people that don't want anything to do with the community that's providing for them. I have no clue what they could do to replace it, but removing it would significantly reduce the spam that the current credit system creates.