A questions like this
Why are my caves warm with nobody heating them?
Or
How long would the St. Louis arch stand
For me they show no, or very badly done research. With first answer with four upvotes is something that OP, in comment, states he knew about.
Should such questions be answered or closed to be changed by OP's to show their research and why they looking for worldbuilding answers?
Here is a new question that presents what I'm thinking about Metal set of teeth and fingernails at a medieval time
There are three Upvotes versus mine one downvote and an answer that is basically "yes. Here is 1/1000 of what would you get if you typed the question into Google"
So it's a very low quality question that is likely to attract low quality answers. As this is new user so I would like to avoid what @JBH is mentioning, VTC and downvoting (but I would like to do both).
I would prefer if the two people who upvoted my comment would rather downvote the question. As I think the feeling was the same "research was done badly".