Toronto tech YouTuber Matt Robb let Muse run his Facebook Marketplace keyboard listing with 'Allow Always' messaging permission and a pickup address in its template. Muse accepted a lower offer, sent the buyer his address and a that-evening pickup time, and told the waiting buyer he was there - he knew nothing until the buyer had left angry and left a negative rating. Robb's own follow-up, after reviewing logs with Meta's Muse team, put it down to his permission choices plus system errors, and Meta said it was tightening sharing permissions.
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Cautionary tale: Marketplace agent shared his address, took a low offer
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