There's no "in theory" about it. I am right. In every eBay thread posted on here, literally a handful of incidents on eBay are held up as gospel against the millions of successful transactions that take place on there every day.
Also, taking a picture of something working before postage is never proof of anything. Things get damaged in transit all the time.
700+ transactions here no major issues, had a few faulty items arrive and sucessfully got refunds from sellers... sold a few items that arrived faulty - jsut refunded the buyers (<£30 items)