Yes it is.
Fuck you.
Edit: Let me elaborate some. It's not just about being invaded and killed. I did my homework on Dark Souls online and griefing potential. There are NPCs that evidently give different dialog if you are Hollow or Human, and will permanently go hostile if attacked, or disappear, without a chance to do penance from that Paul Bearer dude under the bell tower. For instance, I just found the Giant Blacksmith, and evidently griefers like to invade and try to make you fight in his room so you accidentally attack him, removing his services from the game for that playthrough.
I'm sure there are other ways to bone someone by invading at just the right moment.
Fuck that.
Someone lied to you about the NPCs, and the latter scenario with the giant blacksmith is so unlikely to happen that you shouldn't even bother. Playing in hollow form eliminates all the disadvantages without the handicap that DeSouls had, anyways.