Buying QQ likes (including via WeChat payment) violates QQ's community guidelines and terms of service. Engaging in such activities carries multiple risks:

1. Account penalties: Your QQ account may face restrictions, temporary suspension, or permanent ban due to violating platform rules.
2. Financial scams: Many "brush-like" services are fraudulent—you might pay but receive no actual likes, or even have your WeChat payment information stolen by untrustworthy third parties.
3. Security threats: Sharing account details or personal information with these services could lead to privacy leaks or account hijacking.
   It’s recommended to grow your QQ presence legitimately: focus on creating valuable content, actively interacting with friends or followers, and participating in relevant communities. Avoid any paid services that promise quick, artificial growth—they are neither safe nor sustainable. If you encounter suspicious services, report them to the platform promptly.