Why do I seem to dislike people that "tell it like it is"?

Some girl say "I have the rights to my honest opinion and if it's something I don't like or what I prefer, I'm going to say it! If you guys don't like it, don't watch my videos. I'm a straightforward person and I tell it like to is!" I think she was super rude and I just stopped watching her videos. She is too blunt and straightfoward.
One of my dad's friend's second daughter is a very honest person and she tells it like it is. I like her other sister....just not her.