Why account age is not a trust signal on its own

The short answer

Account age tells you when an account was registered. It doesn't tell you who is using it now.

Old accounts are regularly stolen, sold, or kept as spares by scammers, and scammers know that many people treat age as a reason to trust someone.

Old accounts get compromised and sold

Steam accounts are stolen and sold all the time. Aged accounts sell for more because people trust them, even though that trust was built by an owner who may no longer have access.

• Account markets
  Aged Steam accounts are bought and sold openly. The price goes up with anything that makes an account look established, because that's what buyers are paying for.
• Credential stuffing
  Passwords leaked from other sites are tried against Steam logins. People who reuse passwords can lose accounts they haven't checked on in years.
• Phishing and hijacking
  Phishing, session token theft, and malware are common on Steam. A hijacked account keeps its original creation date under its new owner.
• The username-as-email exploit (2015-2016)
  On early Steam accounts, registered between 2003 and 2009, the public username was taken from the first part of the email address used to sign up, so the username gave away most of the email. Around 2015-2016, attackers started using this to find email addresses that were no longer active, register them again, and use them to recover the Steam account. Many accounts were taken over this way. Because they are some of the oldest accounts on Steam, they make up a large share of the aged accounts for sale today.

A 20 year old account doesn't mean the same person has been trading on it for 20 years.

The alt account problem

When a scammer gets banned or picks up a bad reputation, they switch to another account and start over. Bans usually come after the damage is done, and by then the scammer has moved on.

• Scammers often have several accounts ready, each a few years old and never flagged.
• Older alts are saved for high-value trades, where a newer account would draw suspicion.

Scammers use account age as a selling point

Scammers know that many people check account age before a trade, so they bring it up themselves: "I've had this account since 2012, why would I scam you?"

It works best on people who don't trade often, which is why it comes up so much.

What to check instead

Bans and reputation

• Trading sites such as Backpack.tf, Mannco.store, and Marketplace.tf keep their own ban lists, separate from Valve's.
• A clean record across several of them counts for more than account age, but it's still no guarantee.

Activity consistency

• Long-term users usually have games, playtime, friends, and community history that fit the account's age.
• Check whether the activity, trading history, and backpack history make sense for an account that old.
• A burst of activity on an account that sat idle for years suggests it recently changed hands.

Metrics that can be bought or boosted

Many profile stats that look like signs of credibility can be bought. A scammer who has already stolen valuable items has money to spend on making a profile look legitimate, so don't treat any of these as proof.

• Account level
  Steam level goes up by crafting badges from trading cards, which are cheap in bulk. A high level shows that someone spent money, not that they can be trusted.
• Awards
  Profile and comment awards are paid for with Steam Points, which you get by spending money on Steam. Like levels, they only show that someone spent money.
• Account age
  Aged accounts are bought and sold, as covered above. Age shows when the account was registered, not how long the current owner has had it.
• Game count
  Big libraries are cheap to build from bundle sites, free games, game boosting services, and regional pricing. Hundreds of games cost little next to the value of the items being traded.
• Trades made
  Trade counts can be inflated through paid services that trade cheap items back and forth with the account. The count doesn't show whether any of those trades were real.
• Market transactions
  Market history can be padded with small, repeated purchases. A high transaction count doesn't mean a real trading history.
• Game hours
  Playtime can be inflated with tools that run games in the background. High hours don't mean anyone actually played.

Behavioral red flags

How someone acts during a trade, and what their trading history looks like, often tell you more than their profile.

• The deal is too good to be true
  If a stranger messages you offering to buy your whole backpack at full price, walk away. Real buyers don't show up out of nowhere with generous offers.
• There is a sense of urgency
  Legitimate traders take their time to get things right. Pressure to act fast is meant to stop you from thinking it through.
• They keep telling you how trustworthy they are
  Scammers are quick to list their credentials ("I have 20 years of service and 20 trusts on backpack.tf") as soon as you hesitate. It's meant to lower your guard.
• Short or inconsistent cash trading history
  Someone who has cash traded consistently for years without long gaps is less likely to scam you than someone who started a few months ago.
• Large gaps between trusts
  90 trusts from years ago and only a few recent ones is a warning sign. Some former traders come back to scam people who only look at the total.
• Suspicious trust sources
  Scammers have used stolen or bought accounts to leave trusts for trades that never happened. Check that the accounts leaving trusts are real, active users.
• Trusts from low value back-and-forth trades
  Trading the same cheap items, such as keys, back and forth is a known way to inflate trust counts on backpack.tf. A high count made up entirely of small, identical trades doesn't mean much.
• Unwillingness to share an email for PayPal transactions
  For PayPal trades, a legitimate trader will share their email address. Be wary of anyone who won't.
• Refusal to use a cash trading site or accept keys as an alternative
  Sites like Marketplace.tf make fraud much harder, and serious buyers will usually pay a bit more to cover the fees of a safer payment method. Scammers push back because these options make it harder to take the items and disappear.

This list is not exhaustive. If something doesn't feel right, then it probably isn't.