Everyone does freebies or at least very cheap work when they first get started. I wouldn't be too worried bout it, I think the kid deserves a hug for wanting to do what we do - it's brain-melting work, retarded hours and very little thanks for how much we actually improve a band's "product". Welcome iceman!! It's fun, trust me.
Everyone had a period of looking like an asshole online too, don't be so hard on him.
I would agree that trying to establish a business with a death metal logo isn't probably the smartest thing - you'll drive away more potential clients than you'll pull in. Same goes for business names and overall presentation, sure you might be a "metal guy" but you're also aiming to be a skilled professional, would you still go to a doctor who was rocking shorts & tshirt?
You'll have more success offering cheap/free shit to local bands to build your chops on. If you're good, they'll refer you to other locals and you'll start to build a reputation. Your work should also be one step ahead of your price too, if you do a shit job for free then you'll only get people coming to you coz you are free.