I have -34 ip?

Did you transfer more IP than you had, or is that IP from planets you had -IP in from lost battles with ships?

so you don't lose anymore ip if you don't have shadow? You use to even if you didn't.

If you lose IP for sending ships somewhere, then negative IP MUST exist. Otherwise, you would NEVER send ships somewhere where you already have IP, and get your allies to send their ships instead.

What is this about shadow IP though? You dont get shadow IP on enemy worlds..

This is the sort of weird play optimization technique that planetwars encourages all over the place but is neither intuitive or the kind of play we want to encourage.