Buying QQ likes (such as the "1 cent for 1000 likes" service you mentioned) is not recommended, and here are the key reasons:

1. Violation of platform rules: QQ's Terms of Service explicitly prohibit artificial manipulation of engagement data (including fake likes, followers, etc.). If detected, your account may face penalties like restrictions on functions, temporary suspension, or even permanent ban.
2. Account security risks: Most providers of such services are unregulated. They may require you to provide QQ account credentials or click on malicious links, which could lead to account theft, privacy leaks, or malware infection on your device.
3. High risk of scams: Many "cheap like" services are fraudulent—they may take your money but fail to deliver the promised likes, or use your account for illegal activities without your knowledge.
4. No real value: Fake likes do not represent genuine user engagement. They cannot help you build a real audience or achieve long-term growth for your QQ space/content. Focusing on creating high-quality, valuable content is the only reliable way to gain authentic likes and followers.
   To protect your account and interests, it’s better to avoid such services and invest time in producing content that resonates with real users. This is the sustainable way to get legitimate engagement.