True
Eight in 10 social media users fall under an obligation to display advertising disclosures, according to the claim at issue, which stands as fact.
The claim, summarized in Korean as "SNS 이용자 10명 중 10명 중 8명 '표시해야'" — that 8 out of 10 social media users must display (disclosure labels) — was assessed against 12 primary sources reviewed in the reporting process.
The review concluded with a final determination of fact (사실), based on the 12 primary sources examined. The finding concerns disclosure requirements for advertising displayed by social media users, a topic overseen in Korea by bodies such as the Fair Trade Commission.
Details on which specific user categories are covered, and the penalties for non-compliance, were not provided in the available material and remain unconfirmed.
The claim that 8 out of 10 social media users are subject to advertising display obligations is True.