Valve will no longer help victims of Steam trade scams be reunited with their lost items, a policy change on the matter has confirmed.

"Our community assigns an item a value that is at least partially determined by that item's scarcity. If more copies of the item are added to the economy through inventory rollbacks, the value of every other instance of that item would be reduced," explains Steam's policy.

"We sympathize with people who fall victim to scams, but we provide enough information on our website and within our trading system to help users make good trading decisions."

Valve concludes that "all trade scams can be avoided".

The onus on trade safety is now on the user, so be sure you read up on the best ways to avoid being scammed if you're unsure about a trade.

Source: Steam Support