No one should think they need to prove their sexual orientation with their answers, and no one is making a declaration of their attraction to an actress/actor by making a selection. Anyone should feel free to pick among the selections based upon their appreciation of knowledge and care with which the question was written. Should I feel compelled to pick Janeway from among the captains because I am a heterosexual man? No. Besides, the only great "lover" was Kirk. Which Dax would you rather have as your best friend: Lela, Tobin, Emony, Audrid, Torias, Joran, Curzon, Jadzia, Ezri?