one problem with data scraping is that it puts a significant network load on servers, which slows down the browsing experience for genuine humans. this is why many platforms already operate measures to detract bots. i think the most well-known project is Anubis, as is used for example on https://feddit.org/

(it works by doing a proof-of-work. the client needs to solve a few cryptographic puzzles sothat the operationing cost for bot scrapers becomes too high while for humans it's an acceptable cost.)