Not at all, PayPal is a good pay method and its no scam at all, I use them pretty often and I trust them with all my heart..
If they are a scam they should not be existing anymore, I do not understand why people calling Paypal a scam when most of the users are using their services and get the benefits out of it, surely paypal is a big company and in the line of business they have, trust is very important.