I'm seeing a lot of horror stories from paypal but it seems like mostly people selling. They seem to be pretty buyer oriented when it comes to chargebacks etc, is my assumption right?
It's essentially the same thing. If the seller has a significant risk of being ripped off by the payment processor, they'll have no choice but to pass that cost on to the buyer. That why if you try to buy Bitcoins and pay with PayPal, you'll wind up paying more.
It leads to a death spiral. Say Bitcoins are selling for $10 each. But due to the additional risk, I'll have to charge $12 if you're going to pay with PayPal. Well, scammers don't care if they have to pay extra because they aren't actually going to pay anything. But this will cause some legitimate users to go to in person or major exchanges instead. So my ratio of scammers to legitimate users will go up. Soon I find that $12 isn't enough and I have to charge $14. Scammers still don't care, so I don't get rid of any scammers. But now, even fewer legitimate users are interested in using PayPal, so the price again has to go up.