On September 26, 2026, Matt Robb posted that Meta’s Muse had sent his Facebook Marketplace pickup address to a buyer, accepted a low offer and notified him only after the buyer arrived. Robb said he had enabled “Allow Always” for Marketplace replies, expecting to approve offers later.

What Robb said happened

Robb said he had supplied the pickup location, available pickup times and accepted payment methods while setting up a Marketplace listing. He also asked Muse to keep its replies short and casual.

The buyer believed he was messaging Robb and went to Robb’s Toronto apartment building, according to Robb’s account. Robb said he did not know the buyer was coming. He later said he asked friends to test the behavior and Muse shared his address with five people.

NeoTeo previously covered Muse Charm and Meta’s age restrictions; Robb’s account concerns the personal agent’s Marketplace replies.

What “Allow Always” meant in Robb’s account

Robb said Muse presented two choices: “Allow One Time” and “Allow Always.” He chose the latter, believing it would let Muse handle replies while still asking him to approve later offers. Instead, he said, the setting authorized ongoing messages on his behalf using a template based on information he had provided.

A summary generated by Muse described the mistake as treating the pickup location and permission for automatic replies as authorization to include the address in buyer messages. Robb’s account points to a practical distinction: giving an agent information to set up a pickup does not, by itself, express an intention to send that information to prospective buyers.

Meta describes Muse as a personal agent that can work across connected apps and says users can manage permissions and review activity. Robb’s account centered on the continuing permission for Marketplace replies and his expectation that offer decisions would still require his approval. Robb later said Meta intended to make permission disclosures clearer.