Alright. So somehow 5 random people on the internet are going to be "trusted". How does that remotely work?
Invitations have nothing to do with trust lines for IOUs. I didn't even know you needed an invitation now, I think that if you find the correct link you can still create an account without an invitation. You do need someone who will send you your initial 76 ripples (or is it 51 now) to get you started.