Ebay Not Protecting Buyers As Much

Hi everyone. I gave up selling on ebay some time back due to their "buyer is always right" policy, but lately I am seeing some changes in that. I was trying to buy a 2019 Canadian fifty cent coin. The coin is worth about $5 or so, no great amount of money.

First try coin never arrives. I contacted seller for resolution. He cancelled the completed auction (!) so no feedback could be posted. The seller claimed he had proof that the coin was delivered. It was sent via Canada Post lettermail, so there could be no confirmation. ebay accepted his word and closed the case. When I pointed out that confirmation was impossible, they reversed their decision because "they had proof that the coin was stolen during delivery". When I asked how they knew that, I got no reply. But I did get my refund.

OK, so I tried again to buy the coin. This time the seller cancelled the auction. He stepped up and apologized saying he had run out of inventory. Fine we all make mistakes so I was good with that.

I tried a third time to buy the coin on ebay. This time the coin did not arrive in the timeframe the seller gave me. I contacted him. He immediately cancelled the auction (!) to prevent me from posting negative feedback. ebay then got involved and told me that the item had been delivered to me via Purolator and gave me the tracking number. When I pointed out to ebay that the item was NOT shipped via Purolator and that the Purolator tracking info showed the item was delivered to another town, they told me to contact Purolator (!). The coin arrived in the mail next day, so I contacted ebay to ask them to cancel my appeal. Still waiting to hear back from them.

Sorry for the long explanation. What worries me about this is that seller feedback ratings are no longer dependable if sellers can just cancel any deal that has problems. All three sellers have 100% positive feedback with over 1000 ratings. Has anyone else noticed this?