Yep per their website: Timeshare transactions -- offers to buy, sell, or rent rights to the periodic use of a property. A timeshare is real estate that is jointly owned by people who share the right to use the property and take turns using it.
Paypal is more of a convenience than a safe guard. Also something to always watch for is, if someone is offering a great deal over what most everyone else is offering.
$12-$13 per point for a rental is the norm, anything greatly less, I would be asking why?