Post quality is not judged by how high your account ranks, people will judge by what you write, not by who wrote it. Post quality is assessed subjectively, you can't demand to give a good rating for your post. Account rank does not guarantee posting quality, some forum members who rank Legendary do not necessarily have extensive knowledge in the forum, maybe they are in the highest ranking because they get Airdrop merit from the Admin. You can use the "Report to moderator" button if you come across a low quality post or one that talks gibberish that leads to spam.