@frostycab Some studios hire law firms that have automated bots which troll websites (particularly known websites) if trigger words come up. Since it's a law firm, versus the studio, that sends these out, some websites (and particularly the web-hosts or the webmasters) have some responses set to automatically comply when these are received - so there's no real review or verification process involved.
As you noted, what searchable terms are used is one thing that prompts these trigger words for law firms.