you wont be able to get personal details lined to this site as it doesnt have enough security to protect them enough to be honest.
on paypal it costs 3.4% for the seller to use paypal if the buyer uses the “non gift” selection so £3.40 per £100 with that £3.40 you are covered in a way as you are buying a service/product thus the protection is there though im not sure how protected though.
For me personally i think its the sellers issue with paying for paypal fees as they should account for this into their “asking price” and doing the old “if you wish to buy this use paypal gift otherwise include the relevent fees” is just taking the piss a bit.
Its the same as saying” buy from me using paypal gift so i get 100% of your cash and you have 0 protection if i screw you over”
End of the day you the one selling you should make it safe and secure for the buyer, its your responsibility as too is that it gets there.
thats the way distance selling regs are so why not use same method for second hand i say