I’ve also noticed that trend lately. I think I know why:
As a buyer, my feedback is less important, as the only acceptable feedback is a positive one for a buyer. Pay right away, communicate, and only complain if something is wrong. No reason to leave a bad feedback for that. But, sellers have no choice but to either leave positive ffedback, or none at all, even on horrible buyers. (Yes, they exist too.)
Now for sellers, feedback is a bit more important. Bad feedback will take away some “top” seller perks. (But only for so long…)
I have only left a negative feedback one time, after the “new in package” railcar kit (stock picture) arrived in a zip-lock bag, no box, with incorrect parts. When I contacted the seller, their response was “Yep, we know it’s the wrong parts. Most modelers can make it work anyways.” [:|] [8o|]
They got a full neagitve feedback, and their disrespectful retort via email was forwarded with a full complaint to eBay. I will never buy anything from RiverCityRail again… not eBay, not vendor show, never. (That was seriously their initial response, they knew full well the description was wrong, and did not care… The retort I received via email over the deserved negative feedback was even worse…)
So seller feedback I payed attention too, but now, after so long, the negative feedback left for sellers drops off, so it’s now even not as important for sellers, and way less helpful for buyers. If a seller sells 100 times, and 1 is wrong, okay, honest mistake. That can drop off over time. If a seller sells 5 things a year, with 3 wrong, that should stay the rating, not drop off over time dispite having zero more sales. It’s now more wild west style, and more “eBay, PayPal, CreditCard company” get notified if something is off.
So, as sellers are forced to leave only positive feedback, or none at all, and the seller received feedback, positive or negative, drops off over time