Yes, the idea that this company paid a lawyer to go through its tech stack and figure out who owns the code relied upon by the company is fairly ridiculous. Either a lawyer drafted a template email for the company to send to its suppliers, or a lawyer (read: intern) was given a list of suppliers to email on behalf of the company, or a lawyer wasn't involved at all.

But in software communities (and particularly in FOSS communities) tech people can do no wrong; every time a tech company does an aggressive or foolish or otherwise objectionable thing, there must be a dastardly lawyer somewhere pulling the strings.

Exactly, everything is a Search problem. Most organizations (recruiters, sales) have their own efficient Search algorithms. Unless you know the intricacies of that, you deserve to be mocked for displaying ignorance.

It's as dumb as mocking scammers for their methods. They are effective in their own way. Just because it didn't apply for you, doesn't mean they aren't making money out of this -- which is their ultimate goal. Their goal is not to satisfy your ego and custom tailor a message to you