Yes. Obvious scammer calls, skip answering a few times, same scammer keeps calling, answer & ask, poof, no more calls.

Of course it doesn't end such calls altogether, but 2 a week is a damn sight better than several a day.

Do you have direct knowledge that they would not bother managing their call lists, or do we have dueling suppositions?

I don't have direct knowledges of practices of companies who refuse to disclose who they are. What I'm saying comes from the fact that it just hasn't worked for the calls to my line. I switched numbers to make them stop. There's an Internet full of reports of other people saying the strategy you advocate doesn't work for them either, and the government agency that regulates the phone lines explicitly recommends against it.

But we could call that dueling supicions if you'd like.

And just to clarify, you're talking about a US number that's been listed on the national Do Not Call list, right?

And not just regular scam calls, but calls placed by an automatic dialer and answered by an automated system that falls to a human caller only after being answered, right?

How much emphasis would I have to use to convince you that I am participating in good faith and actually understand what a robocall is and all the rest of it?

The ellipsis in my terse comment was sort of grounded in why the hell else would I post what I posted, and now we are 2 or 3 rounds deep in you asking me if I'm really sure.

Explicitly answering those questions anywhere would be enough! Thanks!

I have no worries about your faith! Just your context!