Pictures aren't loading for me, but I would think that if it was bright yellow it's probably dyed. Most yellow anemones that come into the hobby have been died, and it's depressingly common with H. Crispas.
Edit: Pics loaded up now, and I don't want to hit any nerves, but it certainly looks bleached to me. I think that once it begins to regain zooxanthellae it will be more of a green color, but I have certainly been wrong before. What exactly makes you say it's not bleached, out of curiosity?