I don't want to reveal my meatspace identity for the probable chance that what I'm doing is illegal in most firstrealm jurisdictions. It doesn't mean that what I'm doing is wrong or bad, but simply banned by those in power.
It's a form of armour, where so often in life we are exposed and naked to the eyes of the state and organisations because of what they know about us. When what I'm doing is the latest target boogieman it's good that my physical identity isn't easily known.
Also no one needs to know my real identity to know whether I'm trustworthy or not, I'm not concerned with looking legit, because the fact is I'm not. But I get shit people want done so that's really all that I think matters.
