The current de-facto policy we have regarding homework-like questions is to require an attempt at solving the problem by the OP. While this keeps the most blatant cases of laziness out of our question list, there are at least two kinds of questions which I personally don't like that slip through:
"check my calculations" - this is when the OP asks yet another question about equivalent resistance or Kirchhoff's laws. They made their calculations, but suspect there's a mistake and ask to double-check it. This is a waste of time IMO, they could simply present their solution to the professor giving them the course, or simply enter the circuit in a simulator and get the right answer.
"monkey with a typewriter" - this is when the OP doesn't know how to solve the problem, but since questions without an attempted solutions are closed, they will present a nonsensical solution to fulfill the rules. A proper answer will still have to start from scratch.
Yet, the requirement to present an attempted solution keeps away some legitimate questions where the OP doesn't have an idea where to start. As an example, if the OP doesn't know about delta-star transformation, they will be completely stuck with a problem where they need to apply one. They can of course resort to the "monkey with a typewriter" strategy, but I don't think that's very educational.
Perhaps a better policy for homework-like questions would be to favor conceptual questions, which don't ask for specific numbers. Such a policy would keep people who are too lazy to plug their numbers in well-known formulas away, and also get rid of "check my calculations" questions. Additionally, we would be able to keep questions which the OP doesn't know how to tackle, without giving them an incentive to present a nonsensical solution as an excuse. And conceptual questions make better duplicate targets too, because exact numbers don't matter.
Now, I'm not arguing that engineering questions should not include numbers. In fact, if the OP is debugging a circuit and had measured a voltage at some point which they think is abnormal, the exact value of the voltage is crucial for answering. But I believe it's fairly easy to distinguish homework-like questions from engineering ones: they feature circuits with no practical application, have artificial constrains (e.g. a requirement to calculate something that could be easily measured) and so on, so I don't think we'll be throwing out the baby with the water.
I'm also not opposing to homework-like questions which include numbers as an illustration. If the OP have an question with numeric values printed on the schematic, they don't have to remove them. What would be forbidden is to ask for a specific number: be it the equivalent resistance, voltage between points A and B, or the cutoff frequency.
Also note that we don't have to drop the "attempt at solving" requirement, though I would suggest we lax it quite a bit. That is, the OP who has been tasked with equivalent resistance calculation and didn't try anything will still get their question closed, either because of "no attempt" rule, or because they asked for a specific numerical solution. The OP who worked on their problem and got stuck in the middle will be able to both demonstrate a reasonable attempt at solving and ask about a specific step rather than the final answer.
Any thoughts on the above? Examples where such a policy would be lousy?
Edit: please don't hesitate to downvote if you dislike the idea. So far all answers I got are critical, yet there's only one downvote.