Its possible with a trusted trader but you should look out because you can get scammed fast on these forums.
More scammers are coming everyday and they have no mercy if you understand what I mean.
Its just much better to do this at a fully trusted player in this and also the fact paypal will make it difficult with disputes about bitcoins..
Avoid this option at all cost. Unless you are absolutely 100% certain that the individual you are dealing with is trustworthy.
Didn't you guys heard that master-p once one of the most prominent escrows on bitcointalk with his exit scam robbed BTC with PayPal to BTC transaction?
You are right its very risky to do this with traders, but I must say its the easiest option with the lowest fee's if you ask me.
The point is to look at the forums and the reviews who already trade with the person, use a trader that is already doing this for a while.