I'm not quite sure why PayPal should be a risk for the buyer?
The buyer pays with paypal, and has 45 days to claim a chargeback against the seller - regardless of whether he actually received the coins or not.
So this is a clear risk for the seller, but the buyer has nothing to lose ?!
I understand what you mean now. Nevertheless, all this is not best suitor for trading and there must a trustworthy company or site where man can buy and sell btc thru paypal payment, isn't it?
We are a currency exchange that works with paypal, we have been around since 2012 and just re-launched our website and services.

That's good to hear but what's your company name and can you post the company website so myself and the intelligent people in this forum can see to it.