If I can find your work somewhere other than XWF then I am not counting it as original material and I will DQ the character. We've caught people in the past, and I'm sure we'll catch more in the future. It's easier to spot than you'd think. Sometimes I'll copy and paste a line out of someone's RP just as a random check.

There are two reasons I don't like recycled content. For one, there's no way to confirm that you are the original author. And second, it's unfair that you get to copy and paste something in 5 minutes while your opponent sits down and goes through the tedious process of coming up with fresh material. It's lazy and unfair to your competition.