I'm mostly curious why anyone would bother with doing attacks like this to some random individuals personal blog, was it one person or multiple people? What was

I'm mostly curious why anyone would bother with doing attacks like this to some random individuals personal blog, was it one person or multiple people? What was the motivation? Is it just bots crawling the internet to spread hate? A sad state of affairs, but certainly seems like having a strictly moderated comment section is a better option for a site like this.