However, you'll probably also be sued into oblivion by angry authors/publishers who don't like people modifying what they read in any way.
Some of my CX team is getting harassed by trolls who send profane messages and racial slurs through the Zendesk Chat interface. Zendesk does not have a way to filter out profanity (for Chat at least; there are options for emails or tickets).
I’ve found simple client side extensions that can censor words, but a better approach would use NLP to grasp the context.
“I hope you die” contains the same words as “My <product> got wet, I hope it didn’t die”, but with vastly different intention.
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[1] https://jigsaw.google.com/issues/
[2] for example https://boingboing.net/2019/08/14/white-aligned-english.html