I am a timeshare owner at Casa Ybel and a frequent contributor to and reader of Tripadvisor.
Tripadvisor does not control what is written on their site. The best way to promote your favorite travel destinations and restaurants is to leave reviews of your own on Tripadvisor. If everyone who loves Casa Ybel leaves a glowing (and honest) review on Tripadvisor, the ratings for the resort will rise in the ranks. People who read Tripadvisor before they chose their vacation destination, will take into account all of the reviews they read there, but most especially, the recent ones.
My advice is to go on Tripadvisor yourself and write a review. Tell the world what you love about Casa Ybel and Sanibel! Casa Ybel is currently listed at #17. Your review will help it move up in the rankings.

http://www.tripadvisor.com/Hotel_Review-g34616-d226581-Reviews-Casa_Ybel_Resort-Sanibel_Island_Florida.html

Happy holidays everyone!