Ohh, I looked at the wrong time stamp. Lol. I don't know how you can trade coins on the forum safely but thanks.
If you give Paypal people will most liekly won't trust you however if you are looking for Paypal , trusted members will come to trust with you and you don't worry about Irriversible methods .
I personally prefer Neteller because they have some rules about Chargeback etc and most people use it . (note that Neteller is a credit card company that allow Card to Card sending )
you can do all that on Currency exchange . just make sure to choose trusted members (green if it's large amounts)