ยท 3 min read

๐Ÿ“ž Lenny Vs. Telemarketers

In 2009, an IT worker built a fake elderly Australian named Lenny โ€” 16 audio clips, no AI โ€” and kept telemarketers talking for nearly 10 minutes on average. Today that same instinct is a $24K MRR business opportunity.

๐Ÿ“ž Lenny Vs. Telemarketers

In 2009, some IT guy got tired of fielding telemarketing calls at work. So he built a fake old man named Lenny.

Lenny was sixteen audio clips. Soft, elderly Australian accent. A silence-detection algorithm waited 1.5 seconds after the caller stopped talking, then played the next clip. First four clips hooked the caller. Remaining twelve looped until they hung up.

The entire engine was a timer. Lenny would ask callers to repeat themselves, mention his third-eldest daughter, get confused about what was being sold. Telemarketers stayed on an average of nine minutes and forty-three seconds. Some went past half an hour. With sixteen audio clips and a silence detector.

He became a cult hero online, named after the creatorโ€™s elderly neighbor who kept a man-height pile of plastic bags in his backyard. Confused, warm, impossible to hang up on. That was the whole bit.

That was 2009. Sixteen clips and a timer.

Americans got 52.5 billion robocalls last year. Average victim lost $3,690. The creator economy already proved scambaiting prints money as content: Scammer Payback has 8.59 million YouTube subscribers and over a billion views. Kitboga clears $450K a year doing it live. They all have the same problem: every call is manual.

So picture a scambaiting studio. An AI bot picks up suspicious calls with an entertaining persona, keeps the scammer talking, and auto-cuts the highlights into subtitled vertical clips. Free tier for the satisfaction of hearing your scammer get played. Creator tier at $19-29/month for people who want to turn those calls into content. A thousand creators at $24/month is $24K MRR, and every free-tier clip that goes viral is marketing you didnโ€™t pay for. The full playbook covers MVP scope, unit economics, and the moats worth building early.

Read the full playbook here:

52.5 billion robocalls hit Americans in 2025. The business worth building isnโ€™t another blocker โ€” itโ€™s an AI persona that wastes the scammerโ€™s time and turns the transcript into a clip.

Full Playbook

From the Vault:

Credit unions and community banks handle pig-butchering and authorized-fraud cases with Word docs and Outlook folders. No purpose-built investigation workbench exists โ€” and FinCEN just created the demand.

Full Playbook

Local businesses already pay for campaigns like this. GooseChase charges $400+ per event and ignores the neighborhood coffee shop market entirely. The software gap is wide open.

Full Playbook

Read next

๐Ÿ“‹ A 1982 Trick for Therapists

๐Ÿ“‹ A 1982 Trick for Therapists

In 1982, pharmacists handed out grocery bags to find out what patients really took. The bag didn't work, the questions did. Therapists face the same blind spot with AI use today โ€” the fix isn't reading transcripts, it's building the workflow that asks.

Startup Heist | Briefings
Startup Heist | Briefings
ยท 3 min read
๐ŸŽฐ America Invented It, Japan Owns It

๐ŸŽฐ America Invented It, Japan Owns It

Capsule toy machines were invented in 1880s New York and forgotten. Japan added one twist, sealing each toy inside its capsule, and built a $141 billion industry from mystery alone. Today's idea: a local capsule machine route stocked with collectibles nobody else can sell.

Startup Heist | Briefings
Startup Heist | Briefings
ยท 3 min read
New startup opportunities, ideas and insights right in your inbox.