Yep, I did read your OP, your thought process, and the entire thread, in fact. I personally don't understand why you wouldn't go out with a short guy, but hey, that's your choice and you're attracted to whatever you're attracted to so I saw no need to comment on that aspect of your post, as others have.
It's the part about wondering whether you should cancel it that gets me.
You're an adult, so if you don't want to go, don't go. It's easy enough to call or text someone and say you can't make it or changed your mind. You don't have to tell him it's because you're prejudiced against short men. What is so befuddling about that?
That you think strangers on the internet would know better what you should do about saying yes or no to someone you haven't even met yet makes no sense to me. However, telling you my direct, objective opinion is not belittling you or stating any rules (?), so I don't know where you got that from what I wrote. You seem overly sensitive. I have no emotion connected to posting my reply, and no idea why you're reacting so melodramatically. I am just calling it as I see it, and this is a public message board, so take it or leave it.
I don't have any opinion of you. I don't recall any of your other threads, nor anything else about you, so I don't remember of my previous responses from any of them, but you can put me on your ignore list if you do not like blunt or direct responses.