It's not related and both are different services. You're talking about Coinpal.eu (
a scam) and the link of the topic you posted is about coinpal.ndrix.com.
Contrary to what you may think, it is not so easy to buy or sell bitcoins through Paypal. And due to the nature of the risk of using this payment processor, sellers often charge an exorbitant price. Like 20 or 30% above the market.
Yet there is
not thousand of place to do it
A Bitcoin mixer isn't going to help in his/her case since none deal with Paypal.
...
Probably it was Wirwox? The website people also used to buy a currency for a vidéo game (second life?)
Yeah, they closed in January last year.