Ebay a long long time ago realised their business model is best served by charging the fees, keeping everyone as quiet as possible, and avoiding covering things financially unless they really have to. That's why they've done so many things that seem counter-intuitive to an auction concept, right from introducing buy-it-now, to making the feedback system so corrupt it doesn't serve any real purpose to anyone.
I totally get it, it's just not possible to move an auction house to online-only and have everyone act honorably, and they probably realised they were on a hiding to nothing way back, when there was some semblance of trying to resolve disputes. And frankly, while there's loads of great sellers out there, who are probably trying to work out how to get ebay and amazon out of their lives, it also attracts the dodgy gets.
I do use ebay all the time, more so since letting amazon prime lapse (£100!!!). And yea it nowadays sides with the buyer all the time, which is kind of good assuming the buyer is honest. Most 2nd hand stuff I buy is absolutely fine, but the amount of sellers selling fake and usless new stuff, then want to mess you around when you politely ask them to sort it, is unreal. I don't even give them a chance now and file a dispute, and end up getting my £ back, albeit with a bit of inconvenience.
Regard tracking I find that problematic these days too, I've had sellers change the auction completely, send me absolute tut, and then show the tracking. Case closed. And I've had situations where the tracking shows deivered, but it definitely has not been. The race to the bottom in the courier market has caused this problem too.
The other problem for ebay of course is now facebook marketplace are eating their lunch. I would hate to be in charge there!
I do say I use eBay every day safe in the knowledge that I'll get ripped off again shortly
