Why is it common practice not to eat Giraffe Meat?
As By: Rabbi Ari Z. Zivotofsky Ph.D. explains in detail, there is no reason why not to eat Giraffe meat from a Halachic point of view.
There are two answers that people say they are both off. The place for Shechting is known it and it is huge. The other answer is there is no market for it put that could be solved with some good marketing (Just look at Sushi).The real answer is to eat something we need a Mesorah that it is Kosher.The Remah says it about birds in Yoreh Deah 82:3. The Chazon Ish(Yoreh Deah 11:4-5) and the Chochmas Adam(36:1) extends this to all animals. Therefore the real reason we don't eat is because we have no Mesorah for it.