[brutusborn]

I tried a similar approach but it resulted in me being spammed way more frequently. I assume pressing 1 flags your number as "likely to respond" and the database is then sold to other scammers. Also, collecting numbers doesn't work because all the spam calls I receive are from spoofed mobile numbers which change each time. The craigslist trick just punishes some unsuspecting person, not the scammer.

[hot_gril]

Yes, it probably adds you to their lists. Somehow, after doing this for years, I'm probably only getting one spam call each day, maybe because my carrier did something to cut down on them.

The Craigslist trick worked because of a unique situation. They were using real numbers because their scam relied on being called back. He did call manually to make sure.