Its fine having a buyer arrange a courier…. if they’ve asked / made that arrangement before bidding. If it properly is a courier, rather than sending a pal round, then you’ve got as much protection with them paying for the carrier as if you paid for it yourself. Ebays buyer and seller protection revolves around tracking numbers. If the buyer arranges their own carriage they still need you to print and apply the shipping labels so they’ll have to email them to you to print. So you’ll have the courier info and everything to ID the package to track it. If the buyer claims they haven’t received it then you have the tracking number to prove that it was sent. If it is a scam and its not a legit courier… just don’t hand it over. For your own convenience dictate to the buyer what kind of courier arrangement you want. When I arrange courier pick ups for people I’m buying from we often agree on drop-off services partly because its cheaper for me but also its more convenient for most people to drop something off at a local shop than wait in for a driver.
You’re actually far more at risk on Ebay with ‘collect in person’ if you take paypal for payment. The buyer can collect in person walk round the corner and just tell ebay they’ve not received it – Ebay will ask you for a tracking number – you won’t have one – they’ll refund the buyer. Nothing – a signature, a photo of the buyer with the item in their hands with a newspaper with the date on will trump a tracking number as evidence in Ebay/paypal’s eyes.
So if you’re not going to arrange couriers yourself, and not going to let buyers do it for you, make sure you’re not taking paypal either.