I cannot understand how, almost 20 years after it was first created, a default install of WordPress still falls down gracelessly when faced with any significant traffic. There's no reason why a sensible default configuration can't automatically serve a cached version of an article.
As it is, the default posture of WP is to be software suitable for those who write things that very few people will read.
As it is, the default posture of WP is to be software suitable for those who write things that very few people will read.