If they don't have some pure diabetes or sexual tension involved in it, I get upset. With sexual tension or pure cinammon sweetness, it's amazing. For both yuri and fujo. Casual baiting is just lazy and disrespectful. You should at least have the latent curiosity or hidden desire about munching her rug or groping her boobs if you yuribait, or if you fujobait about giving him a handjob or him sucking your dick.
I don't care if you're mostly straight, you just need at least the slightest curioisity, the slighest hidden desire, the slightest arrousal about it, the slightest hidden crush about your fake ship gay partner. If you don't have that minimum, it's trash. Pure straights can't create good yuri or fujo ships and them baiting it is just a disrespect to the medium and annoying to everyone except straight people who just causually like watching two people of the other gender and know nothing about the real spirit of yuri or gay ships.
There needs to be the tiniest seed of reality to it, no matter how small, even if they'll end up getting in straight marriages later in life.