In the new rules, every 20 upvotes to a question or its answers increases the barrier against deletion by 1 vote. So if a question has an accumulated score of say 60 points, it needs 6 votes to delete - 3 to start and 3 for the 60 points.
Suppose the question only got 5 delete votes. Then, some user sees the question, and thinks one of the answers is potentially harmful. So he gives it a downvote, which brings the accumulated score to 59 points, and the barrier down to 5.
At this point, the question now has sufficient votes to be deleted. But does it actually get deleted? Is the trigger point the casting of a delete vote (thereby still requiring a sixth vote), or are downvotes able to directly delete popular questions?
Intuitively, since it has 5 delete votes and that is all that is required, it would become deleted. But being ISFP, I'm not one for intuition. Furthermore, there are questions that got more than 30 answers through migration but were not reverted to CW. That question will turn CW once a new answer is provided... which parallels the casting of a 6th delete vote when only 5 are now required. So which way does this work?