What was the resolution of this issue?
The same thing was happening with me: Paypal always required a purchaser to create an account on checkout. This is after turning Paypal Account Optional on (it was on to begin with, but I tried turning it off and then on again), clearing cookies, etc. I ended up upgrading to Paypal Pro, but I shouldn't need to spend the extra $30 per month if I don't have to. So, was there a resolution? Thanks!