Well here are the facts:
1) Postcrossing tries to keep some privacy, and you don't have to put a return address on your postcards. BUT they do give out yours, so if you are really paranoid, consider a P.O. Box, (although I am toying with that, just so I can open up the blog to receive mail. I know Katz did a post on crazy mail, but I just like my hobby and life separate).
2) You may send things other than postcards. And if you are like me that's great, as I still can't get my stationery collection and buying under control. And I truly want to experiment with making! All these equal needing folks to send things to.
These are recent purchases. That's right $1 and more Paris!3) You are guaranteed to receive something back! That's one thing I have been lacking from my friends. (Sorry guys! You know who you are. I love you all, but most are not good about the responding!)
4) You are only allowed to access to a limited number of addresses at a time. Which means you can't get a head of yourself . You will have to complete your tasks before getting more AND that keeps you honest!
Check it out. It may not be for you, but maybe it is. And maybe I'll get to send you something!
I hope this finds you all happily mailing!