There’s a specific kind of quiet that happens after a stranger drives away in something that used to be yours.
Private sales run on a handshake. A trailer, a used truck, a compressor, a horse, a camera body worth four grand. Two people meet in a car park, money changes hands, and the whole thing rests on the assumption that the person opposite is who their profile says they are.
Most of the time they are. The trouble is that the exceptions are expensive and they don’t look like exceptions until afterwards.
The two ways this goes wrong
If you’re selling, the risk is the payment. A cashier’s cheque that clears and then unclears eleven days later. A transfer that gets reversed. A buyer who takes the item on a promise to send the balance and then stops existing — which is easy to do when the name they gave you was never theirs.
If you’re buying, the risk is the item. A vehicle with finance still on it. Equipment that turns out to be stolen, which you find out when someone else’s serial number comes up. A seller who takes a deposit for something they don’t own.
Both versions have the same root. Neither side knows who the other actually is, and the transaction is designed to finish before anyone finds out.
You already have enough to check
By the time you’ve agreed a price you’ve usually collected three things without trying: a name, a phone number, and either an email or a marketplace profile. Sometimes an address, if delivery came up.
Those should line up. When they don’t, the mismatch is almost always the first honest thing you learn about the person.
Ask for a full legal name before the meet, not at it. Someone who is exactly who they say they are will find that a mildly annoying request. Someone who isn’t will find it a problem, and how they respond tells you more than the answer does.
What to actually look at
Start with the phone number, because it’s the hardest thing to fake convincingly over time. A number that’s been attached to the same name for years is a good sign. A number registered to somebody else, or to nothing at all, is worth a question.
Then the name against an address history. Not to find out where they live — you don’t need that and shouldn’t collect it for its own sake — but to see whether the person has a coherent past. A name with no trace anywhere is unusual for an adult in the United States.
Then the email. Age matters more than the address itself. An account created a fortnight ago, used only for this, is doing a job.
And finally the marketplace profile, if there is one. Look at when it was made, not just the rating. Ratings can be farmed in a weekend. A join date can’t.
The pressure tell
Every version of this scam runs on speed. There is always a reason the deal has to close today: a flight, a move, a second buyer with cash in hand, a family situation.
Sometimes those reasons are true. People do move house and do sell things in a hurry. But urgency plus a reluctance to put a full name in writing is a combination that should slow you down rather than speed you up, and any legitimate seller or buyer will accept a day’s delay for a payment that clears properly.
The other reliable tell is a request to move the conversation off the platform early. Marketplaces keep records. That’s exactly why some people don’t want to use them.
TellData is built for identity checks, not for employment, tenancy or credit decisions — those need an FCRA-compliant screening service.
Doing it in one go
All of the above is possible by hand. A reverse phone lookup, a name search, a look at the county records, twenty minutes of scrolling. On a four-thousand-dollar sale that’s time well spent, and most people still don’t do it, because the meet is in an hour and the listing has been up for three weeks and you just want it gone.
A consolidated report collapses that into one document: identity and SSN trace, address history, court and criminal records, watchlist screening, phone and email consistency, and public web presence — ending in a Clear, Review or Flag verdict. It runs in about two minutes for $29.99, which is a rounding error against most things worth meeting a stranger to sell. Here’s what one contains.
What earns its keep isn’t any single check. It’s the contradictions showing up together — a name that doesn’t match the phone, on a buyer who needs the deal done before Thursday.
The car park
You’ll do dozens of these and nearly all of them will be a nice person with a trailer hitch and correct change.
The check is for the one that isn’t, and you don’t get to know in advance which one that is. Two minutes, before you agree the time.