The services you mentioned (such as brushing QQ likes through third-party channels) violate the terms of service of QQ platform and may bring multiple risks to you:

1. Account security risks: Using non-official services may lead to your QQ account being restricted (e.g., temporary freezing, function limitation) or even permanently banned by the platform.
2. Financial fraud risks: Many "lowest price" brushing services are scams—they may take your payment (via WeChat or other methods) but not deliver the promised likes, or trick you into paying additional fees. Some may even steal your WeChat payment information for malicious purposes.
3. Privacy leakage risks: Third-party brushing services often require you to provide account information or authorize login, which may result in the leakage of your personal data (e.g., chat records, contact information).
   The healthy operation of social platforms relies on real interactions. If you want to get more attention, it is recommended to create high-quality, valuable content—this is the most reliable way to gain genuine likes and recognition from others. Please stay away from illegal or risky services to protect your account and property safety.