Eh?

This little sticker has appeared on our village postbox and on ones I've seen in Brum too. If there's a collection at 5.30pm on a weekday and 11.00am on a Saturday what does this mean?

It means that the good old days of the last post have gone, sadly, and they'll just pick it up at any time they like during the day. I suppose it's our fault really for not sending letters any more?