WRT proxies and VPNs etc., it's likely that you'll continue experience spotty and erratic service from the mobile skin and perhaps even PP itself. Routing through a proxy is seen as a security risk by much of the software we use to screen for spam, and as such you may not even be able to get to PP at all at times when using a known proxy IP. This is unlikely to change. Given the increasing flow of spam, there is simply no other way for us to deal with this problem.