A New Jersey software engineer built BeepBack, a $79 a month tool that texts back missed calls for tradespeople so a plumber stops losing jobs to the next name on Google. His r/EntrepreneurRideAlong post is unusually honest about channel testing, with the receipts most growth posts skip.
The numbers on every channel that failed
Cold calls: 133 dials to plumbing businesses, zero signups, and only about one in six even answered, which is the very problem he solves hanging up on him. Warm email: 36 personalized messages to businesses he had already called, zero replies. Paid: $164 on Meta, zero signups, killed. And the reason paid could never work: Keyword Planner showed the whole search category at one to two thousand searches a month and shrinking. You cannot buy demand that does not exist, and you cannot rank for searches nobody makes.
The channel that produced: the supply house counter
What moved the needle was physically showing up. He became a regular at a local plumbing supply house, brought donuts, and asked the counter staff how contractors handle their phones. He did a free website audit for the supply house and walked the fixes in on paper. Now the counter hands his card to plumbers who complain about missed calls, and one warm intro became a standing Friday call with an out of state contractor who is opening his own network. His summary of the pattern: every channel that works is a person who trusts him, every dead channel was him at scale, being a stranger.
Why it works
Tradespeople do not research software, but they all stand at the same counters every week, and they trust the people behind them. A supply house is a daily gathering point with built in credibility, so one relationship there distributes you to hundreds of contractors. Giving value first, donuts and a free audit, is what earns the referral.
How to copy it
Before writing content for a market, check whether the market searches at all. If it does not, list the physical places your buyers already queue: supply houses, wholesalers, trade counters, weekly markets. Become useful to the person behind the counter, then let them do the introducing.
Credit: u/nyc_android_dev on Reddit