He does mention EG in his FAQs, briefly:

Q: I noticed that your art seems to be a bit like Edward Gorey's art. Is it? — submitted by Frank Nitty
A: Mr. Gorey is one of my favorite authors/artists. I do share some of his techniques but I try very hard to be original. I could never be another Edward Gorey and I won't try to be. I do like his art and I have a vast collection of his work, but I just do my own thing.

I am overwhelmed with melancholy.

> There's also soemthing odd about his work, it's not fluid, like he is trying too hard to get a "look"

I think I see what you mean, but that style may be intentional. It looks like one of his influences is 1960's art animation like "The Yellow Submarine", which sometimes was a bit clunky. There are the references like psychedelic lettering, round sunglasses, platform shoes, and shooting star graphics:
www.ben-wu.com/samples_Th...n_title.htm
www.ben-wu.com/samples_Th..._sample.htm

Then there are the stiff-looking characters, along the lines of the "Eleanor Rigby" sequence in "The Yellow Submarine":
www.ben-wu.com/samples_Un..._sample.htm
www.ben-wu.com/samples_Un...s_title.htm

As for plagiarism... looks like he has some interesting influences, including Edward Gorey among many others. That's a good thing, not a bad thing. He's not plagiarizing anything. Notice the keywords on his biography page, in particular the second item:

"Ben Wu, Edward Gorey, Halloween, scary, creepy, macabre, morbid, books, book, art, drawing, drawings, illustration, illustrations, sketch, sketches, picture, pictures, gruesome, bizarre, strange, weird, eerie, shocking, outlandish, psychedelic, China, Chinese, story, stories, illustrated tales, illustrated tale, surreal".

Comparing this type of influence with DVD / CD pirating is rubbish.

I'd hate to see what he'd do to the Gilded Bat.