Buying likes for QQ postcard content (such as "1 yuan for 100,000 likes") is not a legitimate or recommended practice, and there are several important risks to note:

1. Violation of platform rules: Most social platforms (including QQ) explicitly prohibit artificial manipulation of engagement data (like buying likes/followers). If detected, your account may face penalties such as restrictions, temporary bans, or even permanent suspension.
2. Fake engagement with no real value: The likes obtained through such services are usually from bots or inactive accounts, which cannot bring genuine interaction, attention, or long-term growth to your content.
3. Potential scams: Many "cheap like" services are fraudulent—you may pay money but receive no likes at all, or your personal information (like payment details) could be leaked or misused.
   If you want to get more genuine likes for your QQ postcards, it’s better to focus on legitimate ways:

• Create high-quality, interesting, or meaningful content that resonates with others;
• Actively interact with friends or the community (like commenting on others’ content, sharing valuable insights);
• Share your postcards with people who might be interested in them (e.g., relevant groups or circles).
  Genuine engagement takes time, but it’s the only way to build real connections and value on the platform. Please avoid risky and non-compliant practices to protect your account safety.