Closed accounts = deletion of all posts

Within minutes of joining and posting on this forum I noticed a large amount of closed accounts and their LQ posts making it difficult to sort through low quality posts to find real content. I've mainly experienced this in the BTC discussion area of the forum where there are multiple threads titled "y BiTcOiN s O hiGh" and half of those accounts are closed. I suggest that either all threads from closed accounts are deleted, or archived. Their replies to threads are not so much of a problem since they don't affect the overall quality of the whole section.