Lol common guys, seriously? They do charge relatively high fees for their service (compared to Bitcoin) but calling them a scam?? People will complain about anything and everything under the sun, doesn't mean anything. I use PayPal all the time, it is the most widely used payment processor in the world and makes buying/selling so much easier, I can't imagine not having a PayPal account.
Paypal freezes your funds for 180 days for unknown reasons.
They wouldn't do that for no reason, they would only be harming themselves if they did. Although I guess mistakes can happen.