I recommend the following to prevent fraud.
Victims are occurring due to scams that use recent sales posts to induce transactions through fraudulent sites like OO Mall/OO Shop, etc.
If you add the phrase
"All schemes that induce transactions through OO Mall / OO Shop and other external sites are scams"
to the text content that is automatically generated when creating a sales post,
it could help prevent fraud damage, even if only partially.
Please review this and implement it if possible.
