Blogspam just linking to a bunch of prior reports and posts from earlier in the year.
Some ongoing recent discussion:
Cloudflare Radar: AI Insights
https://news.ycombinator.com/item?id=45093090
The age of agents: cryptographically recognizing agent traffic
https://news.ycombinator.com/item?id=45055452
That Perplexity one:
Perplexity is using stealth, undeclared crawlers to evade no-crawl directives
https://news.ycombinator.com/item?id=44785636
AI crawlers, fetchers are blowing up websites; Meta, OpenAI are worst offenders