1) it is free for most westerners it is better than bitcoin in that regard 0 dollar sending fee.
2) It is instant. People always say bank this or that. I want to flip the same funds over and over. I can do that with paypal. If I use anything else it is 3-5 days of down time every time I sell off, that sucks!
3) I make a living selling on ebay so I have pp funds, any other method and I have to transfer to a bank 3-5 days
4) There is no perfect payment system.. I believe if someone is gonna rob you they are gonna rob you. People are always getting burned with the methods that are preferred. Money pak, bank transfers, bank deposits, western union, cash. I personally think that cash is super sketch in large amounts. You are not just selling bitcoin you are selling access to heroin, meth and coke. If you think someone might put a gun in you face for an equal amount of heroin you better be careful.
5) I can get money from an exchange to cash in 15 min. I have a paypal card and can sell for paypal and have cash in my hand in 20 min tops.. It is very liquid like that.
6) The main reason that I do it is because I love the idea of the peoples money (bitcoin) and want people to use it. I hear over and over if more business only took bitcoin, or we need more business to take bitcoin. That is not the problem every business in the world could take bitcoin and it wouldnt matter because if is a cluster fuck to get a bitcoin. People are not going to go out in mass and do bank transfer or money order. It aint gonna happen! I love bitcoin and I am not going drive all the way to the bank to deposit into a strangers account. For bitcoin to work it has to be better than what is already in place.
7) to build a trust network p2p. There has to be a trust network for people to trade p2p for traditional payment methods
To give people what they want. Because i believe that markets reward individuals who give other people what they want.