imo it's slightly more pro-buyer than it was a couple of years ago. If only because unreasonable buyers have killed off most of the value of having 100% positive feedback.
Remember losing it a few years ago when an obvious scammer tried to bully me into a partial refund for an item he had already resold at a 50% markup.
Yes I have a 25+ year old account with 100% feedback, but I don't think it matters nearly as much anymore. Also clearly some subset of buyers understands they can abuse high feedback sellers who want to maintain their feedback rating.
In a way I like the more conversational forum buy & sell system where I have feedback, but also each purchase starts with a DM. I usually can suss out from a few DMs if a buyer is going to be a tire kicker wasting my time, or a perfectionist who will be a pain to sell to. In either case I let those buyers pass and wait for someone worth doing business with.
I set basically everything at an inflated price and accept offers. The kind of person who's going to be a pain will basically never pay an inflated price and if they do you can partial refund the amount you actually would've accepted to let them think they've won.
Remember losing it a few years ago when an obvious scammer tried to bully me into a partial refund for an item he had already resold at a 50% markup.