I suggest adding the following option when exchanging messages between buyer and seller: 1) The buyer sends the message to the seller. 2) The administrator is notified of the message and has the option to change the message, release the message, or even block the message. 3) only after the administrator’s consent, the message is available to the seller.
All of this is to prevent the buyer from entering data in the message, preventing the seller from selling through the store. Thanks