A moderator has apprised me of a rule I wasn't aware of, and wanted to get confirmation from the community.
Prompting question: LC Parallel resonance induction heater
The system flagged your answer as not an answer. Please don't answer is it possible topics mark them as they are of topic - Voltage Spike
[sic]; I'm interpreting this as "Please don't answer 'is it possible' topics, mark them.." but am open to other readings.
Are 'is it possible' questions off-topic?
It does seem like a new and separate category of off-topic, so should perhaps be added to the help section for clarity (or the list of stock close reasons, or etc.). I don't know what process leads to such change, but I'm assuming it at least begins on Meta.
Intuitively, such questions don't lead to much interesting discussion. But the system is set up so that every question (that survives closure etc.) "deserves" an answer. Perhaps 4 hours / 28 views (at time of writing) is premature to conclude the question won't be closed, but I also haven't seen anything in the help section:
that suggests this type of question is off-topic. I can't think of any close votes I've reviewed, that suggest it is also well-known to others. So others will likely find this informative.
Closing Etiquette: Why Do Some Answer *and* Close?
Answering questions which are off-topic
It appears even [likely] closure is not necessarily a reason not to answer. Though perhaps I'm not supposed to read into meta discussions as controlling precedent.