Sorry for my overreaction. But scammers spend all day here searching for "paypal". They know that using paypal means it will be easy to rip you off.
If I had a paypal account I might buy coins from my best friend, but there are so many options that are better, cheaper, safer. It's the worst way to get BTC, IMO.
You are right. The way this forum is moderated allows scammers to keep making new usernames to use the same scam attempts. Paypal is an easy target for scammers to abuse since their policies can be exploited. Paypal is just one way I buy bitcoin and it's only done in small amounts with people that seem low risk to me.
babyg on the other hand is a serial scammer and is one of those people who spends all day looking to scam. Luckily, his writing style makes it extremely evident who he is every time he makes a new account.