Now this actually sounds like a good use-case for LLM/'AI'-enhanced browsers. Everyone has different triggers and YUK! levels and it would take an insane amount of time & effort to encode all that, and setup on each different person's client side, but an 'AI-browser' with 'smart filtering' (or whatever they'd call it) would likely be quick to setup for each user's (dis-)tastes and be quite flexible in recognizing the patterns and taking the desired action (hide, warn, summarize w/o the triggers, sanitize, etc.).

Maybe it already exists(?) but I've avoided 'AI-browsers', keeping my use in their apps/sites.