There's already loads of these. The problem is that most of these IPs are just cloud providers or DC ISPs.
Companies like DataImpulse [1] or ScraperAPI [2] will happily publicize their services with that specific target.
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0: https://drewdevault.com/2025/03/17/2025-03-17-Stop-externalizing-your-costs-on-me.html
1: https://dataimpulse.com/use-cases/ai-proxies/
2: https://www.scraperapi.com/solutions/ai-data/Unethical, definitely. Illegal, no.
Examples?