Ask HN: The most useful LLM agents aren't allowed?

I hope I am wrong on this: where LLM agents seem like they'd be really useful right now would be doing better search filtering and then initial contact/negotiation Q&As on platforms that match e.g. buyer and seller, like Craigslist. But CL for one has (had?) terms of service that prohibit building stuff that scrapes it, and doesn't seem to have improved its search interface for decades. So how do you legally & respectfully get agents to do the work that you need them to do?