I think there's a pretty big difference between stealing bibs to run races and paying for races and misrepresenting your accomplishments in said race. Stealing bibs is pathetic and criminal, misrepresenting yourself is just kind of sad.
There are people who misrepresent their accomplishments all over the place and runDisney is ripe for that sort of behavior. Does it bug me? Yeah, sometimes. Many of the people who misrepresent themselves didn't sweat all summer long, freeze in the winter, deal with blisters, lose toe nails, and have aches, pains, etc. They didn't put in the work and yet get the same respect as those of us who did. But, then I think how sad something in their lives must be if they have to pretend to run a Disney race just to feel some sense of pride or satisfaction. Also, most fakes are easy enough to spot.
Ultimately, people who steal bibs or pretend to run races aren't taking away our accomplishments.