Steam now warns you if a game you're about to buy is already owned by someone in your Steam Family.
![](https://kbin.life/media/cache/resolve/entry_thumb/94/98/9498d71f8c5b5db689013f8ab1125dddf582bbd372ec99a0e2952d66a42278a1.png)
There have been multiple accounts created with the sole purpose of posting advertisement posts or replies containing unsolicited advertising.
Accounts which solely post advertisements, or persistently post them may be terminated.