Google’s John Mueller said it is safe to ignore black hat traffic, he said it is just spam and there is no need to worry about it from an SEO perspective. He said on Reddit that black hat traffic is just spam and you should ignore it.
The Reddit post wrote that he was concerned this black hat traffic that he did not pay for or want may hurt his site. He wrote:
John Mueller of Google responded saying “Ignore it; Google does. It’s just spam.”
I know it can be concerning to see a ton of spammy traffic coming in but there is really no need to worry that it might impact your Google rankings. Unless that ends up being a DDoS attack and takes down your site but that is a larger issue to worry about.
Forum discussion at Reddit.