Celebrity chefs often have good ideas. Sometimes, these ideas are really practical. Not everything you see on television or in a cook book is practical for a person to just go home and try. Celebrity chefs want to improve their brand so they want to put our recipes that people can duplicate.
Yes, I would go to a celebrity chef's website for Thanksgiving recipes, if a search lead me there. I would likely search for the recipe itself. If a celebrity had a similar recipe, I would go look at it, but I would not go to a celebrity chef's site simply because of the personality.
I would definitely go to a celebrity chef's website to obtain a Thanksgiving recipe. At the very least I could get some good ideas for modifying my own recipes and I might come across a delicious new recipe to try. Thanksgiving is all about tradition, but adding new recipes can enhance the traditional meal.
Celebrity chefs are entertaining and can at times have interesting and unique recipes to try. However, personally I would rather go with a traditional recipe passed down from generations for Thanksgiving dishes. There is simply too much commercialization with celebrity chefs and what they promote in their publications and talk shows.