We have now implemented a new feature and would appreciate some feedback on this.
Basically, a seller can now edit their profile to add a 'Message to Buyers'. Any text entered here is then shown on their profile page (when viewed by another user of the site) and also appears in the 'Meet the Seller' box on all of their active listings.
The message is mainly intended to announce delays in sending items out or if you are on holiday, and is therefore only visible to logged in users.