Yes, for sure
It doesn't even need to be a fixed list, just the UI for picking them, should steer people towards common existing ones
A fun additional feature would be for spoilers -- include enough details (maybe even page/timestamp) and people won't see it UNTIL they get to that point, then make it easy to find.
Also, we need three states per label: Always, Ask, and Never. I don't want to be asked repeatedly about something that's too triggery.
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