Granted but that person was offline when you made your wish so eventually (maybe 100 years latter) that person's gonna add a wish to his post.
I wish I have a new clock.
Granted but the comp now turn on forever and no one can turn it off, so it becomes too hot and it burns you because you stuck with it.
I wish I had the Triforce of Wisdom.
Granted but there is a software for your comp to work on its own free will, and the comp is too tired because of storing too many softwares, so it automatically shuts off forever.
I wish I was 10 cm taller.
Granted but you stuck with that comp forever and 10 years latter when everyone has better computers you still stuck with it and can't have another one.
I wish I could use magic.
Granted but she appears right in your school/working place and because she wears weird clothes and she is your friend so everyone stares at you two and that makes Sheik feels embarrassing, so she goes back into the video game world and never comes out again.
I wish for a dog
Granted but it's too delicious so you just keep eating more and more apple pies 'till you explode. (I love apple pies XD)
I wish for the power to see into the future.
Granted but they don't ask you to solve their problems, you just stick your nose in other's business so they hate you and kill you.
I wish I had infinity money.
Granted but he think you're a Regular Amry soldier so he kill you immediately.
I wish I had the Stone Mask and I could walk freely into people's houses without them noticing anything (maybe I should steal something?)
Granted but because you made no specific wish in your post so the wishes was granted = 0.
I wish I could fly and could get down anytime, and when I was flying I didn't hit anything.