The absolute low of this for me is that I’ve noticed people censoring the word ‘porn’. You’re obscuring the word that describes the already censored thing, why censor the word itself? It’s not even a swear word (which to me don’t make much sense in censoring in the first place)
I think this highlights the big problem with Op’s question: it’s not all about plot, character development can be as satisfying and as important even if the world objectively doesn’t change.
There’s no fullproof way. Even if you somehow block every crawling automation, there’s still puppeteering where the bot behaves just like a normal user.
As someone who works for a paywallled website, that’s hardly a deterrent. If the site is important enough, they will pay for accounts and crawl until the server melts