It's not a conspiracy, but as you've seen, there are more & more people with a sense of entitlement.
I think it is a lot more rife on ebay because people can click & commit to buy without actually paying.
On just about every other ( big company) selling site I go onto, you have to pay first before it is yours.
Then if you change your mind, the company can say bad luck or refuse & there isn't a lot you can do because the company is in charge of its own business. You might go on a review site & slam them, but that's about all.
Plus of course, most other online places insist on you choosing a postage option (or else perhaps ticking for a click & collect) so all that is sorted at the time of payment.
The difference on ebay is ebay is not the actual seller and bidders are aware of that. They don't take it as seriously as some of the other sites. Some of them also know they can get away with it on ebay whereas it would be much more difficult or impossible on many other sites. It's about consequences.
You've just had a bad run, mind you. Not all buyers on ebay are like that. But expect to get a lot of it on ebay or some of the other sites for smaller sellers, like gumtree or FB.
