And now that I've seen what Electron posted, let me add that it has nothing to do with someone having the "right" to scrape publicly posted data and everything to do with having the ability to do so. You can attach a Gig of legal boilerplate to each of your (public) posts, but if some "techbro" can easily grab those posts, don't be surprised when they use the data.

I learned this in 2007, when I started writing blog posts. Within days, searching for terms I'd used in posts showed multiple ad-supported scraper sites re-using my content.

One can spend the time making copyright complaints to the hosters and advertising services, but they were slow to react when I tried it, and $SCRAPER would just delete the specific article I complained about, then grab another article the next day.

TLDR: If you don't want your content to be scraped and used elsewhere, use end-to-end encryption between you and your chosen recipients. Don't complain or threaten retribution until you've done that single foundational thing.