Happened to me a lot these past days. Built a character just to have a low level Darkwraith and play at being an 'enemy' for random people, but there's a lot of people just pulling the plug when you invade, or when you seem to be doing marginally better than the host thinks you should.
And I'm pretty much in the same boat as you, the Darkwraith character is quite regular in everything, and I'm sure as hell not some skilled player. I'm not using the character to wreak people's experiences, but they end up wreaking mine.
Grow some balls people. Swing that damn sword. Be better than me. Seems like it's quite a lot to ask, somehow. Surviving whatever you find is the thrill ride the game offers you. Why would you quit? :-/
But you deliberately made a low level darkwraith. Isn't it fair to assume that those you're invading are almost definitely worse than you are? I consider that wrecking experiences.