I don't really know Paypal that well, I used to be registered, but I closed that a year ago, after years of my account being dormant. What happened with me (recently) was-I suddenly received an email notice from Paypal, which is ignored the first time I saw it because I thought it was just some junk email.
I just sold an item on ebay, as I haven't sold anything for years, and the payment wasn't shown in my bank account. I checked my email account again, and saw the Paypal email again; I clicked on it, and saw that they're *holding on to the payment*...
I contacted them about it, mainly because that payment *includes the shipping money*! They gave some nonsense reasoning about secuirty and protection. The only way to release the money, is to deliver the sold item. Nooooo, that's not shady...
What's worse is, ebay is now in bed with Paypal, which means that ebay might be screwing around.
*Update*
While editing this review with an update the day after I submitted, is strange, I've just learned that Paypal held on to money from an item the buyer received nearly two weeks ago. I decided to contact the buyer yesterdat, after checking my Paypal wallet, and that listing suddenly reappeared upon contacting the buyer.
Yeah, a little suspicious...
(Update): A recent action of Paypal is taking money from my bank account, claiming it to be a fee for this "Global Shipping Program". This fee was not included in the ebay listing or the invoice. The seller said he didn't use such a company (or whatever it is). The listing in my bank account is separate from the item payment, and only says Paypal. Contacting ebay, they said it's Paypal's doing, while contacting Paypal, they point at ebay.