I got invitations about 5 days after joining (last night). It isn't useful initially (unless the people you want to communicate with are already in). I think

I got invitations about 5 days after joining (last night). It isn't useful initially (unless the people you want to communicate with are already in). I think you are right that google is taking the wrong approach with invites, but with a bit of patience, your network of collaborators will get in.