So far I think I've had one false positive for the word 'but', and tens of true positives. My theory is that the one thing clickbait video makers are not is creative.

To allow for false positives I've stolen an idea from HN and simply made the videos hard to see.

The current iteration of the filter looks something like:

     www.youtube.com###video-title-link:has-text(/^you won\'t|^you will not| but | except |^when the|reacts to|^when you|wait for it|^\d+ (\w+y|amazing|strange|best)/i):upward(.ytd-rich-item-renderer.style-scope):not(:hover):style(opacity:0.1)

I haven't gone through all possible ways that youtube pushes videos at you, so I may have missed a couple.