Being too naive attracts too many users and abusers.On the other hand being too paranoid is the opposite end of the spectrum.It results in relational dysfunctions.There are some predators out there who will feed into a person's extreme paranoia and then take advantage of that too in some ways.So may be somewhere in between I guess. I think people are more careful with you if you come across as knowledgeable. Then the message is clear that you will not be used and manipulated.