others do not trust?
I have done around 10,000 transactions through paypal in 6 years. I currently do average 60 a week.
Out of that, I have had 2 transactions go bad on me. Paypal ruled in my favor both times. In one case I got 100% of the reversal back, on the other I lost a bit as the guy had emptied his account. Very small 'default' rate IMO.