MachineLearnng4beginer

  Risks of using Facebook Marketplace (or similar) for annotated data Terms of Service / scraping bans — Platforms generally forbid automated scraping and reuse of content. Violating those terms can get your account blocked or expose you to legal risk. Copyright & ownership — Sellers own the photos they post; you need their permission to reuse them. Public posting ≠ permission for dataset use. Privacy & personal data — Marketplace posts often contain identifying information (faces, names, addresses, phone numbers). Using such data for ML can violate data-protection laws (GDPR, CCPA) unless you get consent and take protections. Consent & human subjects — Even if images are “public,” using them for research/commercial ML without consent can be unethical and legally risky. Bias & label quality — Marketplace images aren’t a representative sample for many tasks; labels derived from seller text are noisy. Delivery / scaling problems — Marketplace i...