[justinjlynn]

Agreed. It's true that there are probably larger, slower fish than you - if you are a potential target. However, pursuers do not stop with the largest and slowest. They will persist and they do not tire. You will make small mistakes and leave partial identifying marks. It's inevitable - even an expert can't be 100 percent every minute of every operation. If you have their attention and you remain active with a single identity for too long the small mistakes will add up and they will find it and thus they will find you. It's not so much a scare tactic as a gamble - one the house usually wins. The larger one identity becomes the larger of a target it becomes. Make it appear as though you are a thousand bit players and not one large one. Change the equation, change the fingerprint - do whatever you can to protect the identity you can't change because you don't get a second chance and they get all the chances they need.

TL;DR - you can never be too paranoid, so long as the overhead doesn't impact your operations. if it does, you need to take a deep look into your risk appetites.