Are Steam key resellers illegal?
It is against Steam’s rules to sell a Steam account or any Steam game keys. This stance against reselling is standard practice for most digital distribution platforms. CD Keys is not an authorized reseller. At worst, though, banning appears unlikely. If stolen, EA states: Additionally, any illegally obtained games and Product Codes will be disabled by us, and access to the product will be lost.
Why do I have to spend $5 on Steam?
In order to make it more difficult for these malicious users to spam, scam, and phish other users, we restrict access to certain community features until an account has spent at least $5. USD in Steam. Buying, selling, trading, or gifting a Steam account is a violation of the Steam Subscriber Agreement (SSA).