@tchambers indeed, and several people explained to you why you were wrong. Including me!
@plasma4045 two things are stopping people today,. First of all, there are legal restrictions on scraping -- both in the US and Europe. Secondly, some information isn't scrapable -- followers-only posts and DMs.
Also, more barriers could be added. I talk about this (and have links to discussions of the legal situation) in "They can't scrape it if they can't fetch it" in https://privacy.thenexus.today/fediverse-threat-modeling-privacy-and-meta/#no-fetching