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Cloudflare launches a tool to combat AI bots
(techcrunch.com)
This is a most excellent place for technology news and articles.
To get more direct to the point you could use those unrendered dummy links to ban whatever IPs click them.
With the vast amounts of training data and how curated they're becoming (Llama and Claude are going that direction) it's infeasible to actually poison a large model to this degree.