So apparently when you sign up with paypal you need to be careful where your particular service is located. This guy appears to have been caught in some weird regulations in Singapore, which caused paypal to freeze his account.
Here is his blog post about it: http://tortoisesvn.net/howpaypalscrewsopensourceprojects
Here is his blog post about it: http://tortoisesvn.net/howpaypalscrewsopensourceprojects