It's a ^&%in' jungle out there-ebay scam

[lost in space]

I just got this from the seller I just bought an item from:

Thanks for buying my laptop!
I am getting the laptop ready to send your way. There were some delays as somebody pretending to be the buyer messaged me asking about changing the shipping address. They almost tricked me into shipping the laptop to them instead of you! Anyway, it should be ready to ship tomorrow with no further delays.

How can they protect sellers from this, or is this just another way the bay is throwing seller under the bus?