Thats it, I'm watermarking everything

I tired of my art being stolen. And now thanks to these selfish people I have to ruin my posts with water marks.
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EDIT

Okay I did not mean to make this into any kind of witch hunt.
The artist who stole from me apologized and are promising to try harder with their OWN STYLE and I am totally happy to hear that.
I would rather someone REF off my images then straight out copy them.
I support the development of artists, not short cuts.

Also, yes I DO consider my artwork being traced STOLEN ART.
As an artist you should know better.
I work hard on my work! I got carpel tunnel for drawing for 18 years!
THATS A LOT OF PAIN IN MY WORK

Some people think that tracing artwork isn't theft but it is. Art theft its self is a short cut, tracing is a short cut, minor editing is a short cut.
Short cuts will not get you anywhere as an artist. As a kid I had the see through paper and I would trace Disney art books and manga all the time.
It seriously got me no where. But after eyeballing photo's, and how things are supposed to look, like legs, arms, fingers, toes, ears, paws shit like that. I seriously got better! 

Practice makes you better guys, please. No more short cuts
And if you'd like to ref my work, please ask me.