Let's ask the Defendant:

Building your own site with pilot reports and want AI to collect content only from certain sources.

Here’s how that works in practice:

Yes, you can restrict AI to specific sites.

If you tell me “only use EuroGA.net and Pilots of America, never AOPA or Reddit”, then I can be directed to search or scrape only those whitelisted sites.

How it’s done technically:

When fetching fresh info, you (or a developer) set the AI/web crawler to query only those domains.
Example: a search like site:euroga.org "PIREP" ensures only EuroGA is searched.

You can also exclude others using -site:aopa.org.

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This does not mean that it "should be done", but technically it is absolutely possible, And the risk is small, because the fact based content of PIREPS (especially when re-written by the AI) can hardly be "copyrighted".

This does not work. LLMs disregard robots.txt etc etc.

The whole LLM copyright debate is regarding this. If LLM scrapers respected these controls, they would be almost useless. They would just be a "better google".

Anyway, doing this would be admitting that specific sources are targeted because they have the quality data Rockhopper is looking for ;)

I have not tried it.