A reminder¹: Questions on how to use an oscilloscope is on topic on a QA website for electrical engineering professionals, students, and enthusiasts.
There is a Vote-to-Close reason that looks something like:
Questions on the use of electronic devices are off-topic as this site is intended specifically for questions on electronics design.
It is there because we used to get a bunch of questions like "Will this charger work with my laptop?" or "How can I connect my DVD player to this TV?". People saw "electronics" in the name and posted the question.
Not for closing questions about using tools-of-the-trade.
¹ I couldn't find a good translation of the Swedish passive-aggressive archaic/idiom "På förekommen anledning" used when you have to post a public notice because someone did something they shouldn't have.