I have no idea why you think your issue has something to do with the VAC forum, but nothing you listed there would be something Valve would do.

Sounds like an account that urgently needs to be secured, as someone seems to have access to it.
Follow ALL these Steps to secure your account:
1. Scan for malware https://www.malwarebytes.com/
2. Check that the email and phone number on the Steam account are still yours.
3. Deauthorize all other devices https://store.steampowered.com/twofactor/manage
4. Change passwords from a trusted/clean device.
5. Generate new backup codes for your Mobile App https://store.steampowered.com/twofactor/manage
6. Revoke the API key https://gtm.steamproxy.vip/dev/apikey (there should be nothing in the APIKEY)

hello, why was my account accused of fraud with the marketplace?
and they deleted all my games and friends, and how can I get rid of what I didn't do and how can I get back everything that was lost from my account, including paid games and their add-ons and friends?