I'm 50/50 on it. Most anime you see being shown on TV is for small children nowadays, so I doubt they care that they retain its original elements, or censor it to oblivion. As long as the children enjoy it and it's generating viewers/revenue. Besides, do you think any child (on a large scale) either knows/cares about getting acquainted with it's Japanese counterpart, let alone afford to? And to an extent, do you event hink they should be able to? I remember my friends older brother introducing me to the japanese episodes of DBZ when I was 8 or 9, and being royally disturbed and upset by the overbundance of gore/swearing/nudity, which was almost nonexistent in the American dub. Sometimes, changes have to be made. It usually a difference of social morals and culture.
For more mature anime like Initial D, whos base is young adults and adults, I can understand, espically since it's American dub was abysmally done, and they tried way too hard to naturalize it for American audiences, hence why they coupled the unedited, original versions of the episodes in each DVD. Some anime is brought to the USA quite well. I remember enjoying Outlaw Star on Cartoon Network no more than the uncut DVD release. After watching Hot Springs Planet Tenrei "enough" times, the story/perversion ratio was unbalanced enough to strike it from air on TV, despite fanboy/fangirl disagreement.